go back to 7.0 language level

code style updates

.github/workflows/build.yml

@@ -13,7 +13,7 @@ jobs:
             fail-fast: false
             matrix:
                 os: [ubuntu-latest]
-                php: ['7.4', '8.0']
+                php: ['7.0', '7.1', '7.2', '7.3', '7.4', '8.0']
 
         steps:
             - name: Checkout

composer.json

@@ -25,7 +25,7 @@
     ],
     "minimum-stability": "stable",
     "require": {
-        "php": ">=7.4.0",
+        "php": ">=7.0",
         "ext-json": "*",
         "yiisoft/yii2": "^2.0.42",
         "bower-asset/bootstrap": "^5.0.0"

src/Accordion.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace yii\bootstrap5;
 
+use Exception;
 use yii\base\InvalidConfigException;
 use yii\helpers\ArrayHelper;
 
@@ -83,16 +84,16 @@ class Accordion extends Widget
      * ])
      * ```
      */
-    public array $items = [];
+    public $items = [];
     /**
      * @var bool whether the labels for header items should be HTML-encoded.
      */
-    public bool $encodeLabels = true;
+    public $encodeLabels = true;
     /**
      * @var bool whether to close other items if an item is opened. Defaults to `true` which causes an
      * accordion effect. Set this to `false` to allow keeping multiple items open at once.
      */
-    public bool $autoCloseItems = true;
+    public $autoCloseItems = true;
     /**
      * @var array the HTML options for the item toggle tag. Key 'tag' might be used here for the tag name specification.
      * For example:
@@ -105,7 +106,7 @@ class Accordion extends Widget
      * ```
      *
      */
-    public array $itemToggleOptions = [];
+    public $itemToggleOptions = [];
 
 
     /**
@@ -116,6 +117,7 @@ class Accordion extends Widget
     {
         $this->registerPlugin('collapse');
         Html::addCssClass($this->options, ['widget' => 'accordion']);
+
         return implode("\n", [
                 Html::beginTag('div', $this->options),
                 $this->renderItems(),
@@ -164,7 +166,7 @@ class Accordion extends Widget
      * @param int $index the item index as each item group content must have an id
      * @return string the rendering result
      * @throws InvalidConfigException
-     * @throws \Exception
+     * @throws Exception
      */
     public function renderItem(string $header, array $item, int $index): string
     {

src/ActiveField.php

@@ -93,15 +93,15 @@ class ActiveField extends \yii\widgets\ActiveField
     /**
      * @var bool whether to render [[checkboxList()]] and [[radioList()]] inline.
      */
-    public bool $inline = false;
+    public $inline = false;
     /**
      * @var string|null optional template to render the `{input}` placeholder content
      */
-    public ?string $inputTemplate = null;
+    public $inputTemplate = null;
     /**
      * @var array options for the wrapper tag, used in the `{beginWrapper}` placeholder
      */
-    public array $wrapperOptions = [];
+    public $wrapperOptions = [];
     /**
      * {@inheritdoc}
      */
@@ -119,7 +119,7 @@ class ActiveField extends \yii\widgets\ActiveField
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      * @since 2.0.7
      */
-    public array $checkOptions = [
+    public $checkOptions = [
         'class' => ['widget' => 'form-check-input'],
         'labelOptions' => [
             'class' => ['widget' => 'form-check-label'],
@@ -134,7 +134,7 @@ class ActiveField extends \yii\widgets\ActiveField
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      * @since 2.0.7
      */
-    public array $radioOptions = [
+    public $radioOptions = [
         'class' => ['widget' => 'form-check-input'],
         'labelOptions' => [
             'class' => ['widget' => 'form-check-label'],
@@ -160,37 +160,37 @@ class ActiveField extends \yii\widgets\ActiveField
      *  - 'error' the error grid class
      *  - 'hint' the hint grid class
      */
-    public ?array $horizontalCssClasses = [];
+    public $horizontalCssClasses = [];
     /**
      * @var string the template for checkboxes in default layout
      */
-    public string $checkTemplate = "<div class=\"form-check\">\n{input}\n{label}\n{error}\n{hint}\n</div>";
+    public $checkTemplate = "<div class=\"form-check\">\n{input}\n{label}\n{error}\n{hint}\n</div>";
     /**
      * @var string the template for radios in default layout
      * @since 2.0.5
      */
-    public string $radioTemplate = "<div class=\"form-check\">\n{input}\n{label}\n{error}\n{hint}\n</div>";
+    public $radioTemplate = "<div class=\"form-check\">\n{input}\n{label}\n{error}\n{hint}\n</div>";
     /**
      * @var string the template for checkboxes and radios in horizontal layout
      */
-    public string $checkHorizontalTemplate = "{beginWrapper}\n<div class=\"form-check\">\n{input}\n{label}\n{error}\n{hint}\n</div>\n{endWrapper}";
+    public $checkHorizontalTemplate = "{beginWrapper}\n<div class=\"form-check\">\n{input}\n{label}\n{error}\n{hint}\n</div>\n{endWrapper}";
     /**
      * @var string the template for checkboxes and radios in horizontal layout
      * @since 2.0.5
      */
-    public string $radioHorizontalTemplate = "{beginWrapper}\n<div class=\"form-check\">\n{input}\n{label}\n{error}\n{hint}\n</div>\n{endWrapper}";
+    public $radioHorizontalTemplate = "{beginWrapper}\n<div class=\"form-check\">\n{input}\n{label}\n{error}\n{hint}\n</div>\n{endWrapper}";
     /**
      * @var string the `enclosed by label` template for checkboxes and radios in default layout
      */
-    public string $checkEnclosedTemplate = "<div class=\"form-check\">\n{beginLabel}\n{input}\n{labelTitle}\n{endLabel}\n{error}\n{hint}\n</div>";
+    public $checkEnclosedTemplate = "<div class=\"form-check\">\n{beginLabel}\n{input}\n{labelTitle}\n{endLabel}\n{error}\n{hint}\n</div>";
     /**
      * @var bool whether to render the error. Default is `true` except for layout `inline`.
      */
-    public bool $enableError = true;
+    public $enableError = true;
     /**
      * @var bool whether to render the label. Default is `true`.
      */
-    public bool $enableLabel = true;
+    public $enableLabel = true;
 
 
     /**
@@ -238,6 +238,7 @@ class ActiveField extends \yii\widgets\ActiveField
                 $this->parts['{input}'] = strtr($this->inputTemplate, ['{input}' => $input]);
             }
         }
+
         return parent::render($content);
     }
 
@@ -351,6 +352,7 @@ class ActiveField extends \yii\widgets\ActiveField
         }
 
         parent::checkboxList($items, $options);
+
         return $this;
     }
 
@@ -392,6 +394,7 @@ class ActiveField extends \yii\widgets\ActiveField
         }
 
         parent::radioList($items, $options);
+
         return $this;
     }
 
@@ -429,10 +432,11 @@ class ActiveField extends \yii\widgets\ActiveField
      * @return $this the field object itself
      * @see https://getbootstrap.com/docs/5.0/components/forms/#readonly-plain-text
      */
-    public function staticControl($options = []): self
+    public function staticControl(array $options = []): self
     {
         $this->adjustLabelFor($options);
         $this->parts['{input}'] = Html::activeStaticControl($this->model, $this->attribute, $options);
+
         return $this;
     }
 
@@ -451,6 +455,7 @@ class ActiveField extends \yii\widgets\ActiveField
             $this->renderLabelParts($label, $options);
             parent::label($label, $options);
         }
+
         return $this;
     }
 
@@ -462,9 +467,20 @@ class ActiveField extends \yii\widgets\ActiveField
     public function inline($value = true): self
     {
         $this->inline = (bool)$value;
+
         return $this;
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function fileInput($options = [])
+    {
+        Html::addCssClass($options, ['widget' => 'form-control']);
+
+        return parent::fileInput($options);
+    }
+
     /**
      * @param array $instanceConfig the configuration passed to this instance's constructor
      * @return array the layout specific default configuration for this instance
@@ -527,20 +543,11 @@ class ActiveField extends \yii\widgets\ActiveField
         return $config;
     }
 
-    /**
-     * {@inheritdoc}
-     */
-    public function fileInput($options = [])
-    {
-        Html::addCssClass($options, ['widget' => 'form-control']);
-        return parent::fileInput($options);
-    }
-
     /**
      * @param string|null $label the label or null to use model label
      * @param array $options the tag options
      */
-    protected function renderLabelParts($label = null, $options = [])
+    protected function renderLabelParts(string $label = null, array $options = [])
     {
         $options = array_merge($this->labelOptions, $options);
         if ($label === null) {

src/ActiveForm.php

@@ -93,7 +93,7 @@ class ActiveForm extends \yii\widgets\ActiveForm
      * override these defaults through [[fieldConfig]].
      * @see ActiveField for details on Bootstrap 5 field configuration
      */
-    public string $layout = self::LAYOUT_DEFAULT;
+    public $layout = self::LAYOUT_DEFAULT;
     /**
      * @var string the CSS class that is added to a field container when the associated attribute has validation error.
      */

src/Alert.php

@@ -46,7 +46,7 @@ class Alert extends Widget
      * the [[begin()]] and [[end()]] calls of the Alert widget will also be treated
      * as the body content, and will be rendered before this.
      */
-    public string $body;
+    public $body;
     /**
      * @var array|false the options for rendering the close button tag.
      * The close button is displayed in the header of the modal window. Clicking
@@ -99,7 +99,7 @@ class Alert extends Widget
      * Renders the close button.
      * @return string|null the rendering result
      */
-    protected function renderCloseButton(): ?string
+    protected function renderCloseButton()
     {
         if (($closeButton = $this->closeButton) !== false) {
             $tag = ArrayHelper::remove($closeButton, 'tag', 'button');

src/BaseHtml.php

@@ -16,12 +16,12 @@ abstract class BaseHtml extends \yii\helpers\Html
      * @var int a counter used to generate [[id]] for widgets.
      * @internal
      */
-    public static int $counter = 0;
+    public static $counter = 0;
     /**
      * @var string the prefix to the automatically generated widget IDs.
      * @see getId()
      */
-    public static string $autoIdPrefix = 'i';
+    public static $autoIdPrefix = 'i';
     /**
      * @var array list of tag attributes that should be specially handled when their values are of array type.
      * In particular, if the value of the `data` attribute is `['name' => 'xyz', 'age' => 13]`, two attributes
@@ -46,12 +46,13 @@ abstract class BaseHtml extends \yii\helpers\Html
         static::addCssClass($options, 'form-control-plaintext');
         $value = (string)$value;
         $options['readonly'] = true;
+
         return static::input('text', null, $value, $options);
     }
 
     /**
      * Generates a Bootstrap static form control for the given model attribute.
-     * @param \yii\base\Model $model the model object.
+     * @param Model $model the model object.
      * @param string $attribute the attribute name or expression. See [[getAttributeName()]] for the format
      * about attribute expression.
      * @param array $options the tag options in terms of name-value pairs. See [[staticControl()]] for details.
@@ -66,6 +67,7 @@ abstract class BaseHtml extends \yii\helpers\Html
         } else {
             $value = static::getAttributeValue($model, $attribute);
         }
+
         return static::staticControl($value, $options);
     }
 
@@ -86,6 +88,7 @@ abstract class BaseHtml extends \yii\helpers\Html
                         'labelOptions' => ['class' => 'form-check-label'],
                         'value' => $value,
                     ], $itemOptions);
+
                 return '<div class="form-check">' . static::radio($name, $checked, $options) . '</div>';
             };
         }
@@ -110,6 +113,7 @@ abstract class BaseHtml extends \yii\helpers\Html
                         'labelOptions' => ['class' => 'form-check-label'],
                         'value' => $value,
                     ], $itemOptions);
+
                 return '<div class="form-check">' . Html::checkbox($name, $checked, $options) . '</div>';
             };
         }
@@ -117,6 +121,18 @@ abstract class BaseHtml extends \yii\helpers\Html
         return parent::checkboxList($name, $selection, $items, $options);
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public static function error($model, $attribute, $options = []): string
+    {
+        if (!array_key_exists('class', $options)) {
+            $options['class'] = ['invalid-feedback'];
+        }
+
+        return parent::error($model, $attribute, $options);
+    }
+
     /**
      * @inheritdoc
      */
@@ -152,23 +168,13 @@ abstract class BaseHtml extends \yii\helpers\Html
             } else {
                 $content = $input . "\n" . static::label($label, $options['id'], $labelOptions);
             }
+
             return $hidden . $content;
         }
 
         return $hidden . static::input($type, $name, $value, $options);
     }
 
-    /**
-     * {@inheritdoc}
-     */
-    public static function error($model, $attribute, $options = []): string
-    {
-        if (!array_key_exists('class', $options)) {
-            $options['class'] = ['invalid-feedback'];
-        }
-        return parent::error($model, $attribute, $options);
-    }
-
     /**
      * Returns an autogenerated ID
      * @return string Autogenerated ID

src/BootstrapWidgetTrait.php

@@ -35,14 +35,14 @@ trait BootstrapWidgetTrait
      * For example, [this page](http://getbootstrap.com/javascript/#modals) shows
      * how to use the "Modal" plugin and the supported options (e.g. "remote").
      */
-    public array $clientOptions = [];
+    public $clientOptions = [];
     /**
      * @var array the event handlers for the underlying Bootstrap JS plugin.
      * Please refer to the corresponding Bootstrap plugin Web page for possible events.
      * For example, [this page](http://getbootstrap.com/javascript/#modals) shows
      * how to use the "Modal" plugin and the supported events (e.g. "shown").
      */
-    public array $clientEvents = [];
+    public $clientEvents = [];
 
 
     /**

src/Breadcrumbs.php

@@ -7,7 +7,6 @@
 
 namespace yii\bootstrap5;
 
-use JsonException;
 use RuntimeException;
 use Yii;
 use yii\helpers\ArrayHelper;
@@ -33,18 +32,18 @@ class Breadcrumbs extends Widget
     /**
      * @var string the name of the breadcrumb container tag.
      */
-    public string $tag = 'ol';
+    public $tag = 'ol';
     /**
      * @var bool whether to HTML-encode the link labels.
      */
-    public bool $encodeLabels = true;
+    public $encodeLabels = true;
     /**
      * @var array the first hyperlink in the breadcrumbs (called home link).
      * Please refer to [[links]] on the format of the link.
      * If this property is not set, it will default to a link pointing to [[\yii\web\Application::homeUrl]]
      * with the label 'Home'. If this property is false, the home link will not be rendered.
      */
-    public array $homeLink = [];
+    public $homeLink = [];
     /**
      * @var array list of links to appear in the breadcrumbs. If this property is empty,
      * the widget will not render anything. Each array element represents a single link in the breadcrumbs
@@ -60,22 +59,22 @@ class Breadcrumbs extends Widget
      *
      *
      */
-    public array $links = [];
+    public $links = [];
     /**
      * @var string the template used to render each inactive item in the breadcrumbs. The token `{link}`
      * will be replaced with the actual HTML link for each inactive item.
      */
-    public string $itemTemplate = "<li class=\"breadcrumb-item\">{link}</li>\n";
+    public $itemTemplate = "<li class=\"breadcrumb-item\">{link}</li>\n";
     /**
      * @var string the template used to render each active item in the breadcrumbs. The token `{link}`
      * will be replaced with the actual HTML link for each active item.
      */
-    public string $activeItemTemplate = "<li class=\"breadcrumb-item active\" aria-current=\"page\">{link}</li>\n";
+    public $activeItemTemplate = "<li class=\"breadcrumb-item active\" aria-current=\"page\">{link}</li>\n";
     /**
      * @var array the HTML attributes for the widgets nav container tag.
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $navOptions = ['aria-label' => 'breadcrumb'];
+    public $navOptions = ['aria-label' => 'breadcrumb'];
 
 
     /**
@@ -127,42 +126,6 @@ class Breadcrumbs extends Widget
         return Html::tag('nav', Html::tag($this->tag, implode('', $links), $this->options), $this->navOptions);
     }
 
-    /**
-     * Renders a single breadcrumb item.
-     *
-     * @param array $link the link to be rendered. It must contain the "label" element. The "url" element is optional.
-     * @param string $template the template to be used to rendered the link. The token "{link}" will be replaced by the
-     * link.
-     *
-     * @throws RuntimeException if `$link` does not have "label" element.
-     *
-     * @return string the rendering result
-     */
-    protected function renderItem(array $link, string $template): string
-    {
-        $encodeLabel = ArrayHelper::remove($link, 'encode', $this->encodeLabels);
-
-        if (array_key_exists('label', $link)) {
-            $label = $encodeLabel ? Html::encode($link['label']) : $link['label'];
-        } else {
-            throw new RuntimeException('The "label" element is required for each link.');
-        }
-
-        if (isset($link['template'])) {
-            $template = $link['template'];
-        }
-
-        if (isset($link['url'])) {
-            $options = $link;
-            unset($options['template'], $options['label'], $options['url']);
-            $linkHtml = Html::a($label, $link['url'], $options);
-        } else {
-            $linkHtml = $label;
-        }
-
-        return strtr($template, ['{link}' => $linkHtml]);
-    }
-
     /**
      * The template used to render each active item in the breadcrumbs. The token `{link}` will be replaced with the
      * actual HTML link for each active item.
@@ -295,4 +258,40 @@ class Breadcrumbs extends Widget
         return $this;
     }
 
+    /**
+     * Renders a single breadcrumb item.
+     *
+     * @param array $link the link to be rendered. It must contain the "label" element. The "url" element is optional.
+     * @param string $template the template to be used to rendered the link. The token "{link}" will be replaced by the
+     * link.
+     *
+     * @return string the rendering result
+     * @throws RuntimeException if `$link` does not have "label" element.
+     *
+     */
+    protected function renderItem(array $link, string $template): string
+    {
+        $encodeLabel = ArrayHelper::remove($link, 'encode', $this->encodeLabels);
+
+        if (array_key_exists('label', $link)) {
+            $label = $encodeLabel ? Html::encode($link['label']) : $link['label'];
+        } else {
+            throw new RuntimeException('The "label" element is required for each link.');
+        }
+
+        if (isset($link['template'])) {
+            $template = $link['template'];
+        }
+
+        if (isset($link['url'])) {
+            $options = $link;
+            unset($options['template'], $options['label'], $options['url']);
+            $linkHtml = Html::a($label, $link['url'], $options);
+        } else {
+            $linkHtml = $label;
+        }
+
+        return strtr($template, ['{link}' => $linkHtml]);
+    }
+
 }

src/Button.php

@@ -4,6 +4,8 @@ declare(strict_types=1);
 
 namespace yii\bootstrap5;
 
+use yii\base\InvalidConfigException;
+
 /**
  * Button renders a bootstrap button.
  *
@@ -23,21 +25,21 @@ class Button extends Widget
     /**
      * @var string the tag to use to render the button
      */
-    public string $tagName = 'button';
+    public $tagName = 'button';
     /**
      * @var string the button label
      */
-    public string $label = 'Button';
+    public $label = 'Button';
     /**
      * @var bool whether the label should be HTML-encoded.
      */
-    public bool $encodeLabel = true;
+    public $encodeLabel = true;
 
 
     /**
      * Initializes the widget.
      * If you override this method, make sure you call the parent implementation first.
-     * @throws \yii\base\InvalidConfigException
+     * @throws InvalidConfigException
      */
     public function init()
     {

src/ButtonDropdown.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace yii\bootstrap5;
 
+use Throwable;
 use yii\helpers\ArrayHelper;
 use yii\helpers\Url;
 
@@ -50,7 +51,7 @@ class ButtonDropdown extends Widget
     /**
      * @var string the button label
      */
-    public string $label = 'Button';
+    public $label = 'Button';
     /**
      * @var array the HTML attributes for the container tag. The following special options are recognized:
      *
@@ -58,43 +59,43 @@ class ButtonDropdown extends Widget
      *
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $options = [];
+    public $options = [];
     /**
      * @var array the HTML attributes of the button.
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $buttonOptions = [];
+    public $buttonOptions = [];
     /**
      * @var array the configuration array for [[Dropdown]].
      */
-    public array $dropdown = [];
+    public $dropdown = [];
     /**
      * @var string the drop-direction of the widget
      *
      * Possible values are 'left', 'right', 'up', or 'down' (default)
      */
-    public string $direction = self::DIRECTION_DOWN;
+    public $direction = self::DIRECTION_DOWN;
     /**
      * @var bool whether to display a group of split-styled button group.
      */
-    public bool $split = false;
+    public $split = false;
     /**
      * @var string the tag to use to render the button
      */
-    public string $tagName = 'button';
+    public $tagName = 'button';
     /**
      * @var bool whether the label should be HTML-encoded.
      */
-    public bool $encodeLabel = true;
+    public $encodeLabel = true;
     /**
      * @var string name of a class to use for rendering dropdowns withing this widget. Defaults to [[Dropdown]].
      */
-    public string $dropdownClass = Dropdown::class;
+    public $dropdownClass = Dropdown::class;
     /**
      * @var bool whether to render the container using the [[options]] as HTML attributes. If set to `false`,
      * the container element enclosing the button and dropdown will NOT be rendered.
      */
-    public bool $renderContainer = true;
+    public $renderContainer = true;
 
 
     /**
@@ -112,7 +113,7 @@ class ButtonDropdown extends Widget
     /**
      * {@inheritdoc}
      * @return string
-     * @throws \Throwable
+     * @throws Throwable
      */
     public function run(): string
     {
@@ -129,13 +130,14 @@ class ButtonDropdown extends Widget
         $this->options['id'] = $this->buttonOptions['id'];
 
         $this->registerPlugin('dropdown');
+
         return $html;
     }
 
     /**
      * Generates the button dropdown.
      * @return string the rendering result.
-     * @throws \Throwable
+     * @throws Throwable
      */
     protected function renderButton(): string
     {
@@ -188,7 +190,7 @@ class ButtonDropdown extends Widget
     /**
      * Generates the dropdown menu.
      * @return string the rendering result.
-     * @throws \Throwable
+     * @throws Throwable
      */
     protected function renderDropdown(): string
     {
@@ -197,6 +199,7 @@ class ButtonDropdown extends Widget
         $config['view'] = $this->getView();
         /** @var Widget $dropdownClass */
         $dropdownClass = $this->dropdownClass;
+
         return $dropdownClass::widget($config);
     }
 }

src/ButtonGroup.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace yii\bootstrap5;
 
+use Throwable;
 use yii\helpers\ArrayHelper;
 
 /**
@@ -48,11 +49,11 @@ class ButtonGroup extends Widget
      * - options: array, optional, the HTML attributes of the button.
      * - visible: bool, optional, whether this button is visible. Defaults to true.
      */
-    public array $buttons = [];
+    public $buttons = [];
     /**
      * @var bool whether to HTML-encode the button labels.
      */
-    public bool $encodeLabels = true;
+    public $encodeLabels = true;
 
 
     /**
@@ -70,18 +71,19 @@ class ButtonGroup extends Widget
     /**
      * {@inheritdoc}
      * @return string
-     * @throws \Throwable
+     * @throws Throwable
      */
     public function run(): string
     {
         BootstrapAsset::register($this->getView());
+
         return Html::tag('div', $this->renderButtons(), $this->options);
     }
 
     /**
      * Generates the buttons that compound the group as specified on [[buttons]].
      * @return string the rendering result.
-     * @throws \Throwable
+     * @throws Throwable
      */
     protected function renderButtons(): string
     {

src/ButtonToolbar.php

@@ -4,6 +4,8 @@ declare(strict_types=1);
 
 namespace yii\bootstrap5;
 
+use Throwable;
+
 /**
  * ButtonToolbar Combines sets of button groups into button toolbars for more complex components.
  * Use utility classes as needed to space out groups, buttons, and more.
@@ -57,7 +59,7 @@ class ButtonToolbar extends Widget
      * - options: array optional, the HTML attributes of the button group.
      * - encodeLabels: bool whether to HTML-encode the button labels.
      */
-    public array $buttonGroups = [];
+    public $buttonGroups = [];
 
 
     /**
@@ -75,18 +77,19 @@ class ButtonToolbar extends Widget
     /**
      * {@inheritdoc}
      * @return string
-     * @throws \Throwable
+     * @throws Throwable
      */
     public function run(): string
     {
         BootstrapAsset::register($this->getView());
+
         return Html::tag('div', $this->renderButtonGroups(), $this->options);
     }
 
     /**
      * Generates the button groups that compound the toolbar as specified on [[buttonGroups]].
      * @return string the rendering result.
-     * @throws \Throwable
+     * @throws Throwable
      */
     protected function renderButtonGroups(): string
     {

src/Carousel.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace yii\bootstrap5;
 
+use Exception;
 use yii\base\InvalidConfigException;
 use yii\helpers\ArrayHelper;
 
@@ -40,7 +41,7 @@ class Carousel extends Widget
      * @var array|null the labels for the previous and the next control buttons.
      * If null, it means the previous and the next control buttons should not be displayed.
      */
-    public ?array $controls = [
+    public $controls = [
         '<span class="carousel-control-prev-icon" aria-hidden="true"></span><span class="visually-hidden">Previous</span>',
         '<span class="carousel-control-next-icon" aria-hidden="true"></span><span class="visually-hidden">Next</span>',
     ];
@@ -48,7 +49,7 @@ class Carousel extends Widget
     /**
      * @var bool whether carousel indicators (<ol> tag with anchors to items) should be displayed or not.
      */
-    public bool $showIndicators = true;
+    public $showIndicators = true;
     /**
      * @var array list of slides in the carousel. Each array element represents a single
      * slide with the following structure:
@@ -64,15 +65,15 @@ class Carousel extends Widget
      * ]
      * ```
      */
-    public array $items = [];
+    public $items = [];
     /**
      * @var bool Animate slides with a fade transition instead of a slide. Defaults to `false`
      */
-    public bool $crossfade = false;
+    public $crossfade = false;
     /**
      * {@inheritdoc}
      */
-    public array $options = ['data-bs-ride' => 'carousel'];
+    public $options = ['data-bs-ride' => 'carousel'];
 
 
     /**
@@ -154,7 +155,7 @@ class Carousel extends Widget
      * @param int $index the item index as the first item should be set to `active`
      * @return string the rendering result
      * @throws InvalidConfigException if the item is invalid
-     * @throws \Exception
+     * @throws Exception
      */
     public function renderItem($item, int $index): string
     {
@@ -186,9 +187,12 @@ class Carousel extends Widget
 
     /**
      * Renders previous and next control buttons.
+     *
+     * @return string The rendered controls
+     *
      * @throws InvalidConfigException if [[controls]] is invalid.
      */
-    public function renderControls()
+    public function renderControls(): string
     {
         if (isset($this->controls[0], $this->controls[1])) {
             return Html::button($this->controls[0], [

src/Dropdown.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace yii\bootstrap5;
 
+use Exception;
 use yii\base\InvalidConfigException;
 use yii\helpers\ArrayHelper;
 
@@ -51,19 +52,19 @@ class Dropdown extends Widget
      *
      * To insert divider use `-`.
      */
-    public array $items = [];
+    public $items = [];
     /**
      * @var bool whether the labels for header items should be HTML-encoded.
      */
-    public bool $encodeLabels = true;
+    public $encodeLabels = true;
     /**
      * @var array|null the HTML attributes for sub-menu container tags.
      */
-    public ?array $submenuOptions = [];
+    public $submenuOptions = [];
 
 
     /**
-     * {@inheritdoc}
+     * {@inheritDoc}
      */
     public function init()
     {
@@ -80,6 +81,7 @@ class Dropdown extends Widget
     {
         BootstrapPluginAsset::register($this->getView());
         $this->registerClientEvents();
+
         return $this->renderItems($this->items, $this->options);
     }
 
@@ -89,7 +91,7 @@ class Dropdown extends Widget
      * @param array $options the container HTML attributes
      * @return string the rendering result.
      * @throws InvalidConfigException if the label option is not specified in one of the items.
-     * @throws \Exception
+     * @throws Exception
      */
     protected function renderItems(array $items, array $options = []): string
     {

src/LinkPager.php

@@ -37,54 +37,54 @@ class LinkPager extends Widget
      * @var Pagination the pagination object that this pager is associated with.
      * You must set this property in order to make LinkPager work.
      */
-    public Pagination $pagination;
+    public $pagination;
     /**
      * @var array HTML attributes for the pager container tag.
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $options = [];
+    public $options = [];
     /**
      * @var array HTML attributes for the pager list tag.
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $listOptions = ['class' => ['pagination']];
+    public $listOptions = ['class' => ['pagination']];
     /**
      * @var array HTML attributes which will be applied to all link containers
      */
-    public array $linkContainerOptions = ['class' => ['page-item']];
+    public $linkContainerOptions = ['class' => ['page-item']];
     /**
      * @var array HTML attributes for the link in a pager container tag.
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $linkOptions = ['class' => ['page-link']];
+    public $linkOptions = ['class' => ['page-link']];
     /**
      * @var string the CSS class for the each page button.
      */
-    public string $pageCssClass = 'page-item';
+    public $pageCssClass = 'page-item';
     /**
      * @var string the CSS class for the "first" page button.
      */
-    public string $firstPageCssClass = 'first';
+    public $firstPageCssClass = 'first';
     /**
      * @var string the CSS class for the "last" page button.
      */
-    public string $lastPageCssClass = 'last';
+    public $lastPageCssClass = 'last';
     /**
      * @var string the CSS class for the "previous" page button.
      */
-    public string $prevPageCssClass = 'prev';
+    public $prevPageCssClass = 'prev';
     /**
      * @var string the CSS class for the "next" page button.
      */
-    public string $nextPageCssClass = 'next';
+    public $nextPageCssClass = 'next';
     /**
      * @var string the CSS class for the active (currently selected) page button.
      */
-    public string $activePageCssClass = 'active';
+    public $activePageCssClass = 'active';
     /**
      * @var string the CSS class for the disabled page buttons.
      */
-    public string $disabledPageCssClass = 'disabled';
+    public $disabledPageCssClass = 'disabled';
     /**
      * @var array the options for the disabled tag to be generated inside the disabled list element.
      * In order to customize the html tag, please use the tag key.
@@ -93,11 +93,11 @@ class LinkPager extends Widget
      * $disabledListItemSubTagOptions = ['class' => 'disabled-link'];
      * ```
      */
-    public array $disabledListItemSubTagOptions = [];
+    public $disabledListItemSubTagOptions = [];
     /**
      * @var int maximum number of page buttons that can be displayed. Defaults to 10.
      */
-    public int $maxButtonCount = 10;
+    public $maxButtonCount = 10;
     /**
      * @var string|bool the label for the "next" page button. Note that this will NOT be HTML-encoded.
      * If this property is false, the "next" page button will not be displayed.
@@ -126,15 +126,15 @@ class LinkPager extends Widget
      * @see http://www.w3.org/TR/html401/struct/links.html#h-12.1.2
      * @see registerLinkTags()
      */
-    public bool $registerLinkTags = false;
+    public $registerLinkTags = false;
     /**
      * @var bool Hide widget when only one page exist.
      */
-    public bool $hideOnSinglePage = true;
+    public $hideOnSinglePage = true;
     /**
      * @var bool whether to render current page button as disabled.
      */
-    public bool $disableCurrentPageButton = false;
+    public $disableCurrentPageButton = false;
 
 
     /**
@@ -223,7 +223,7 @@ class LinkPager extends Widget
         }
 
         // internal pages
-        [$beginPage, $endPage] = $this->getPageRange();
+        list($beginPage, $endPage) = $this->getPageRange();
         for ($i = $beginPage; $i <= $endPage; ++$i) {
             $buttons[] = $this->renderPageButton(
                 (string)($i + 1),
@@ -262,6 +262,7 @@ class LinkPager extends Widget
 
         $options = $this->listOptions;
         $tag = ArrayHelper::remove($options, 'tag', 'ul');
+
         return Html::tag($tag, implode("\n", $buttons), $options);
     }
 

src/Modal.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace yii\bootstrap5;
 
+use yii\base\InvalidConfigException;
 use yii\helpers\ArrayHelper;
 
 /**
@@ -51,35 +52,35 @@ class Modal extends Widget
     /**
      * @var string the tile content in the modal window.
      */
-    public string $title;
+    public $title;
     /**
      * @var array additional title options
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $titleOptions = [];
+    public $titleOptions = [];
     /**
      * @var array additional header options
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $headerOptions = [];
+    public $headerOptions = [];
     /**
      * @var array body options
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $bodyOptions = [];
+    public $bodyOptions = [];
     /**
      * @var string|null the footer content in the modal window.
      */
-    public ?string $footer;
+    public $footer;
     /**
      * @var array additional footer options
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $footerOptions = [];
+    public $footerOptions = [];
     /**
      * @var string|null the modal size. Can be [[SIZE_LARGE]] or [[SIZE_SMALL]], or empty for default.
      */
-    public ?string $size;
+    public $size;
     /**
      * @var array|false the options for rendering the close button tag.
      * The close button is displayed in the header of the modal window. Clicking
@@ -116,25 +117,25 @@ class Modal extends Widget
      * When true the modal-dialog-centered class will be added to the modal-dialog
      * @since 2.0.9
      */
-    public bool $centerVertical = false;
+    public $centerVertical = false;
     /**
      * @var boolean whether to make the modal body scrollable
      *
      * When true the modal-dialog-scrollable class will be added to the modal-dialog
      * @since 2.0.9
      */
-    public bool $scrollable = false;
+    public $scrollable = false;
     /**
      * @var array modal dialog options
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      * @since 2.0.9
      */
-    public array $dialogOptions = [];
+    public $dialogOptions = [];
 
 
     /**
      * {@inheritDoc}
-     * @throws \yii\base\InvalidConfigException
+     * @throws InvalidConfigException
      */
     public function init()
     {
@@ -184,6 +185,7 @@ class Modal extends Widget
             return '';
         }
         Html::addCssClass($this->headerOptions, ['widget' => 'modal-header']);
+
         return Html::tag('div', "\n" . $header . "\n", $this->headerOptions);
     }
 
@@ -194,6 +196,7 @@ class Modal extends Widget
     protected function renderBodyBegin(): string
     {
         Html::addCssClass($this->bodyOptions, ['widget' => 'modal-body']);
+
         return Html::beginTag('div', $this->bodyOptions);
     }
 
@@ -208,12 +211,13 @@ class Modal extends Widget
 
     /**
      * Renders the HTML markup for the footer of the modal
-     * @return string the rendering result
+     * @return string|null the rendering result
      */
-    protected function renderFooter(): ?string
+    protected function renderFooter()
     {
         if (isset($this->footer)) {
             Html::addCssClass($this->footerOptions, ['widget' => 'modal-footer']);
+
             return Html::tag('div', "\n" . $this->footer . "\n", $this->footerOptions);
         } else {
             return null;
@@ -222,9 +226,9 @@ class Modal extends Widget
 
     /**
      * Renders the toggle button.
-     * @return string the rendering result
+     * @return string|null the rendering result
      */
-    protected function renderToggleButton(): ?string
+    protected function renderToggleButton()
     {
         if (($toggleButton = $this->toggleButton) !== false) {
             $tag = ArrayHelper::remove($toggleButton, 'tag', 'button');
@@ -238,9 +242,9 @@ class Modal extends Widget
 
     /**
      * Renders the close button.
-     * @return string the rendering result
+     * @return string|null the rendering result
      */
-    protected function renderCloseButton(): ?string
+    protected function renderCloseButton()
     {
         if (($closeButton = $this->closeButton) !== false) {
             $tag = ArrayHelper::remove($closeButton, 'tag', 'button');

src/Nav.php

@@ -4,9 +4,11 @@ declare(strict_types=1);
 
 namespace yii\bootstrap5;
 
+use Exception;
+use Throwable;
+use Yii;
 use yii\base\InvalidConfigException;
 use yii\helpers\ArrayHelper;
-use Yii;
 
 /**
  * Nav renders a nav HTML component.
@@ -67,39 +69,39 @@ class Nav extends Widget
      *
      * If a menu item is a string, it will be rendered directly without HTML encoding.
      */
-    public array $items = [];
+    public $items = [];
     /**
      * @var bool whether the nav items labels should be HTML-encoded.
      */
-    public bool $encodeLabels = true;
+    public $encodeLabels = true;
     /**
      * @var bool whether to automatically activate items according to whether their route setting
      * matches the currently requested route.
      * @see isItemActive
      */
-    public bool $activateItems = true;
+    public $activateItems = true;
     /**
      * @var bool whether to activate parent menu items when one of the corresponding child menu items is active.
      */
-    public bool $activateParents = false;
+    public $activateParents = false;
     /**
      * @var string|null the route used to determine if a menu item is active or not.
      * If not set, it will use the route of the current request.
      * @see params
      * @see isItemActive
      */
-    public ?string $route = null;
+    public $route = null;
     /**
      * @var array|null the parameters used to determine if a menu item is active or not.
      * If not set, it will use `$_GET`.
      * @see route
      * @see isItemActive
      */
-    public ?array $params = null;
+    public $params = null;
     /**
      * @var string name of a class to use for rendering dropdowns within this widget. Defaults to [[Dropdown]].
      */
-    public string $dropdownClass = Dropdown::class;
+    public $dropdownClass = Dropdown::class;
 
 
     /**
@@ -120,18 +122,19 @@ class Nav extends Widget
     /**
      * Renders the widget.
      * @return string
-     * @throws InvalidConfigException|\Throwable
+     * @throws InvalidConfigException|Throwable
      */
     public function run(): string
     {
         BootstrapAsset::register($this->getView());
+
         return $this->renderItems();
     }
 
     /**
      * Renders widget items.
      * @return string
-     * @throws InvalidConfigException|\Throwable
+     * @throws InvalidConfigException|Throwable
      */
     public function renderItems(): string
     {
@@ -151,7 +154,7 @@ class Nav extends Widget
      * @param string|array $item the item to render.
      * @return string the rendering result.
      * @throws InvalidConfigException
-     * @throws \Throwable
+     * @throws Throwable
      */
     public function renderItem($item): string
     {
@@ -203,12 +206,13 @@ class Nav extends Widget
      * @param array $items the given items. Please refer to [[Dropdown::items]] for the array structure.
      * @param array $parentItem the parent item information. Please refer to [[items]] for the structure of this array.
      * @return string the rendering result.
-     * @throws \Throwable
+     * @throws Throwable
      */
     protected function renderDropdown(array $items, array $parentItem): string
     {
         /** @var Widget $dropdownClass */
         $dropdownClass = $this->dropdownClass;
+
         return $dropdownClass::widget([
             'options' => ArrayHelper::getValue($parentItem, 'dropdownOptions', []),
             'items' => $items,
@@ -223,8 +227,8 @@ class Nav extends Widget
      * @param array $items @see items
      * @param bool $active should the parent be active too
      * @return array
+     * @throws Exception
      * @see items
-     * @throws \Exception
      */
     protected function isChildActive(array $items, bool &$active): array
     {
@@ -248,6 +252,7 @@ class Nav extends Widget
                 }
             }
         }
+
         return $items;
     }
 
@@ -260,7 +265,7 @@ class Nav extends Widget
      * be considered active.
      * @param array $item the menu item to be checked
      * @return bool whether the menu item is active
-     * @throws \Exception
+     * @throws Exception
      */
     protected function isItemActive(array $item): bool
     {

src/NavBar.php

@@ -47,7 +47,7 @@ class NavBar extends Widget
      *
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $options = [];
+    public $options = [];
     /**
      * @var array the HTML attributes for the container tag. The following special options are recognized:
      *
@@ -55,7 +55,7 @@ class NavBar extends Widget
      *
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $collapseOptions = [];
+    public $collapseOptions = [];
     /**
      * @var string|bool the text of the brand or false if it's not used. Note that this is not HTML-encoded.
      * @see https://getbootstrap.com/docs/5.0/components/navbar/
@@ -78,34 +78,34 @@ class NavBar extends Widget
      * @var array the HTML attributes of the brand link.
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $brandOptions = [];
+    public $brandOptions = [];
     /**
      * @var string text to show for screen readers for the button to toggle the navbar.
      */
-    public string $screenReaderToggleText = 'Toggle navigation';
+    public $screenReaderToggleText = 'Toggle navigation';
     /**
      * @var string the toggle button content. Defaults to bootstrap 5 default `<span class="navbar-toggler-icon"></span>`
      */
-    public string $togglerContent = '<span class="navbar-toggler-icon"></span>';
+    public $togglerContent = '<span class="navbar-toggler-icon"></span>';
     /**
      * @var array the HTML attributes of the navbar toggler button.
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $togglerOptions = [];
+    public $togglerOptions = [];
     /**
      * @var bool whether the navbar content should be included in an inner div container which by default
      * adds left and right padding. Set this to false for a 100% width navbar.
      */
-    public bool $renderInnerContainer = true;
+    public $renderInnerContainer = true;
     /**
      * @var array the HTML attributes of the inner container.
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $innerContainerOptions = [];
+    public $innerContainerOptions = [];
     /**
      * {@inheritdoc}
      */
-    public array $clientOptions = [];
+    public $clientOptions = [];
 
 
     /**

src/Popover.php

@@ -44,27 +44,27 @@ class Popover extends Widget
     /**
      * @var string|null the tile content in the popover.
      */
-    public ?string $title = null;
+    public $title = null;
     /**
      * @var array additional header options
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $headerOptions = [];
+    public $headerOptions = [];
     /**
      * @var array body options
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $bodyOptions = [];
+    public $bodyOptions = [];
     /**
      * @var array arrow options
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $arrowOptions = [];
+    public $arrowOptions = [];
     /**
      * @var string How to position the popover - [[PLACEMENT_AUTO]] | [[PLACEMENT_TOP]] | [[PLACEMENT_BOTTOM]] |
      * [[PLACEMENT_LEFT]] | [[PLACEMENT_RIGHT]]. When auto is specified, it will dynamically reorient the popover.
      */
-    public string $placement = self::PLACEMENT_AUTO;
+    public $placement = self::PLACEMENT_AUTO;
     /**
      * @var array|false the options for rendering the toggle button tag.
      * The toggle button is used to toggle the visibility of the popover.
@@ -96,7 +96,7 @@ class Popover extends Widget
     /**
      * {@inheritDoc}
      */
-    public function run(): ?string
+    public function run()
     {
         $content = ob_get_clean();
 
@@ -117,6 +117,7 @@ class Popover extends Widget
     protected function renderArrow(): string
     {
         Html::addCssClass($this->arrowOptions, ['widget' => 'popover-arrow']);
+
         return Html::tag('div', '', $this->arrowOptions);
     }
 
@@ -127,6 +128,7 @@ class Popover extends Widget
     protected function renderHeader(): string
     {
         Html::addCssClass($this->headerOptions, ['widget' => 'popover-header']);
+
         return Html::tag('h3', '', $this->headerOptions);
     }
 
@@ -137,14 +139,15 @@ class Popover extends Widget
     protected function renderBody(): string
     {
         Html::addCssClass($this->bodyOptions, ['widget' => 'popover-body']);
+
         return Html::tag('div', '', $this->bodyOptions);
     }
 
     /**
      * Renders the toggle button.
-     * @return string the rendering result
+     * @return string|null the rendering result
      */
-    protected function renderToggleButton(): ?string
+    protected function renderToggleButton()
     {
         if (($toggleButton = $this->toggleButton) !== false) {
             $tag = ArrayHelper::remove($toggleButton, 'tag', 'button');

src/Progress.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace yii\bootstrap5;
 
+use Exception;
 use yii\base\InvalidConfigException;
 use yii\helpers\ArrayHelper;
 
@@ -80,17 +81,17 @@ class Progress extends Widget
     /**
      * @var string the button label. This property will only be considered if [[bars]] is empty
      */
-    public string $label;
+    public $label;
     /**
      * @var int the amount of progress as a percentage. This property will only be considered if [[bars]] is empty
      */
-    public int $percent = 0;
+    public $percent = 0;
     /**
      * @var array the HTML attributes of the bar. This property will only be considered if [[bars]] is empty
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      * @since 2.0.6
      */
-    public array $barOptions = [];
+    public $barOptions = [];
     /**
      * @var array a set of bars that are stacked together to form a single progress bar.
      * Each bar is an array of the following structure:
@@ -106,7 +107,7 @@ class Progress extends Widget
      * ]
      * ```
      */
-    public array $bars;
+    public $bars;
 
 
     /**
@@ -126,6 +127,7 @@ class Progress extends Widget
     public function run(): string
     {
         BootstrapAsset::register($this->getView());
+
         return $this->renderProgress();
     }
 
@@ -133,7 +135,7 @@ class Progress extends Widget
      * Renders the progress.
      * @return string the rendering result.
      * @throws InvalidConfigException if the "percent" option is not set in a stacked progress bar.
-     * @throws \Exception
+     * @throws Exception
      */
     protected function renderProgress(): string
     {

src/Tabs.php

@@ -4,6 +4,8 @@ declare(strict_types=1);
 
 namespace yii\bootstrap5;
 
+use Exception;
+use Throwable;
 use yii\base\InvalidConfigException;
 use yii\helpers\ArrayHelper;
 
@@ -81,7 +83,7 @@ class Tabs extends Widget
      *     * content: string, required if `items` is not set. The content (HTML) of the tab pane.
      *     * options: optional, array, the HTML attributes of the tab content container.
      */
-    public array $items = [];
+    public $items = [];
     /**
      * @var array list of HTML attributes for the item container tags. This will be overwritten
      * by the "options" set in individual [[items]]. The following special options are recognized:
@@ -90,46 +92,46 @@ class Tabs extends Widget
      *
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $itemOptions = [];
+    public $itemOptions = [];
     /**
      * @var array list of HTML attributes for the header container tags. This will be overwritten
      * by the "headerOptions" set in individual [[items]].
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $headerOptions = [];
+    public $headerOptions = [];
     /**
      * @var array list of HTML attributes for the tab header link tags. This will be overwritten
      * by the "linkOptions" set in individual [[items]].
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $linkOptions = [];
+    public $linkOptions = [];
     /**
      * @var bool whether the labels for header items should be HTML-encoded.
      */
-    public bool $encodeLabels = true;
+    public $encodeLabels = true;
     /**
      * @var string specifies the Bootstrap tab styling.
      */
-    public string $navType = 'nav-tabs';
+    public $navType = 'nav-tabs';
     /**
      * @var bool whether to render the `tab-content` container and its content. You may set this property
      * to be false so that you can manually render `tab-content` yourself in case your tab contents are complex.
      */
-    public bool $renderTabContent = true;
+    public $renderTabContent = true;
     /**
      * @var array list of HTML attributes for the `tab-content` container. This will always contain the CSS class `tab-content`.
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $tabContentOptions = [];
+    public $tabContentOptions = [];
     /**
      * @var string name of a class to use for rendering dropdowns withing this widget. Defaults to [[Dropdown]].
      */
-    public string $dropdownClass = Dropdown::class;
+    public $dropdownClass = Dropdown::class;
 
     /**
      * @var array Tab panes (contents)
      */
-    protected array $panes = [];
+    protected $panes = [];
 
 
     /**
@@ -145,12 +147,13 @@ class Tabs extends Widget
     /**
      * {@inheritdoc}
      * @throws InvalidConfigException
-     * @throws \Throwable
+     * @throws Throwable
      */
     public function run(): string
     {
         $this->registerPlugin('tab');
         $this->prepareItems($this->items);
+
         return Nav::widget([
                 'dropdownClass' => $this->dropdownClass,
                 'options' => ArrayHelper::merge(['role' => 'tablist'], $this->options),
@@ -159,13 +162,24 @@ class Tabs extends Widget
             ]) . $this->renderPanes($this->panes);
     }
 
+    /**
+     * Renders tab panes.
+     *
+     * @param array $panes
+     * @return string the rendering result.
+     */
+    public function renderPanes(array $panes): string
+    {
+        return $this->renderTabContent ? "\n" . Html::tag('div', implode("\n", $panes), $this->tabContentOptions) : '';
+    }
+
     /**
      * Renders tab items as specified on [[items]].
      *
      * @param array $items
      * @param string $prefix
      * @throws InvalidConfigException
-     * @throws \Exception
+     * @throws Exception
      */
     protected function prepareItems(array &$items, string $prefix = '')
     {
@@ -219,6 +233,8 @@ class Tabs extends Widget
     }
 
     /**
+     * Check for active tab
+     *
      * @return bool if there's active tab defined
      */
     protected function hasActiveTab(): bool
@@ -237,7 +253,7 @@ class Tabs extends Widget
      *
      * This method activates the first tab that is visible and
      * not explicitly set to inactive (`'active' => false`).
-     * @throws \Exception
+     * @throws Exception
      */
     protected function activateFirstVisibleTab()
     {
@@ -247,19 +263,9 @@ class Tabs extends Widget
             $disabled = ArrayHelper::getValue($item, 'disabled', false);
             if ($visible && $active !== false && $disabled !== true) {
                 $this->items[$i]['active'] = true;
+
                 return;
             }
         }
     }
-
-    /**
-     * Renders tab panes.
-     *
-     * @param array $panes
-     * @return string the rendering result.
-     */
-    public function renderPanes(array $panes): string
-    {
-        return $this->renderTabContent ? "\n" . Html::tag('div', implode("\n", $panes), $this->tabContentOptions) : '';
-    }
 }

src/Toast.php

@@ -4,6 +4,9 @@ declare(strict_types=1);
 
 namespace yii\bootstrap5;
 
+use DateInterval;
+use DateTime;
+use DateTimeInterface;
 use Yii;
 use yii\helpers\ArrayHelper;
 
@@ -44,13 +47,13 @@ class Toast extends Widget
      * the [[begin()]] and [[end()]] calls of the Toast widget will also be treated
      * as the body content, and will be rendered before this.
      */
-    public ?string $body = null;
+    public $body = null;
     /**
      * @var string|null The title content in the toast.
      */
-    public ?string $title = null;
+    public $title = null;
     /**
-     * @var int|string|\DateTime|\DateTimeInterface|\DateInterval|false The date time the toast message references to.
+     * @var int|string|DateTime|DateTimeInterface|DateInterval|false The date time the toast message references to.
      * This will be formatted as relative time (via formatter component). It will be omitted if
      * set to `false` (default).
      */
@@ -68,7 +71,7 @@ class Toast extends Widget
      * Please refer to the [Toast documentation](https://getbootstrap.com/docs/5.0/components/toasts/)
      * for the supported HTML attributes.
      */
-    public array $closeButton = [];
+    public $closeButton = [];
     /**
      * @var array additional title options
      *
@@ -78,7 +81,7 @@ class Toast extends Widget
      *
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $titleOptions = [];
+    public $titleOptions = [];
     /**
      * @var array additional date time part options
      *
@@ -88,17 +91,17 @@ class Toast extends Widget
      *
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $dateTimeOptions = [];
+    public $dateTimeOptions = [];
     /**
      * @var array additional header options
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $headerOptions = [];
+    public $headerOptions = [];
     /**
      * @var array body options
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $bodyOptions = [];
+    public $bodyOptions = [];
 
 
     /**
@@ -146,6 +149,7 @@ class Toast extends Widget
         $title .= "\n" . $button;
 
         Html::addCssClass($this->headerOptions, ['widget' => 'toast-header']);
+
         return Html::tag('div', "\n" . $title . "\n", $this->headerOptions);
     }
 
@@ -156,6 +160,7 @@ class Toast extends Widget
     protected function renderBodyBegin(): string
     {
         Html::addCssClass($this->bodyOptions, ['widget' => 'toast-body']);
+
         return Html::beginTag('div', $this->bodyOptions);
     }
 

src/ToggleButtonGroup.php

@@ -32,33 +32,33 @@ class ToggleButtonGroup extends InputWidget
     /**
      * Checkbox type
      */
-    public const TYPE_CHECKBOX = 'checkbox';
+    const TYPE_CHECKBOX = 'checkbox';
     /**
      * Radio type
      */
-    public const TYPE_RADIO = 'radio';
+    const TYPE_RADIO = 'radio';
 
     /**
      * @var string input type, can be [[TYPE_CHECKBOX]] or [[TYPE_RADIO]]
      */
-    public string $type;
+    public $type;
     /**
      * @var array the data item used to generate the checkboxes.
      * The array values are the labels, while the array keys are the corresponding checkbox or radio values.
      */
-    public array $items = [];
+    public $items = [];
     /**
      * @var array, the HTML attributes for the label (button) tag.
      * @see Html::checkbox()
      * @see Html::radio()
      */
-    public array $labelOptions = [
+    public $labelOptions = [
         'class' => ['btn', 'btn-secondary'],
     ];
     /**
      * @var bool whether the items labels should be HTML-encoded.
      */
-    public bool $encodeLabels = true;
+    public $encodeLabels = true;
 
 
     /**
@@ -124,6 +124,7 @@ class ToggleButtonGroup extends InputWidget
         if ($this->encodeLabels) {
             $label = Html::encode($label);
         }
+
         return Html::$type($name, $checked, [
             'label' => $label,
             'labelOptions' => $labelOptions,

src/Widget.php

@@ -15,5 +15,5 @@ class Widget extends \yii\base\Widget
      * @var array the HTML attributes for the widget container tag.
      * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
      */
-    public array $options = [];
+    public $options = [];
 }