diff --git a/src/Controls/AjaxUploadInput.php b/src/Controls/AjaxUploadInput.php
index f3ceccf..b333f8b 100644
--- a/src/Controls/AjaxUploadInput.php
+++ b/src/Controls/AjaxUploadInput.php
@@ -36,7 +36,7 @@ class AjaxUploadInput extends BaseControl
     public function __construct($label = null, bool $multiple = false, array $settings = null)
     {
         parent::__construct($label);
-        $this->control->multiple = (bool)$multiple;
+        $this->control->multiple = $multiple;
         $this->control->type     = 'text';
         $this->settings          = (array)$settings;
 
@@ -187,7 +187,7 @@ public function getHtmlName(): string
      *
      * @return $this
      */
-    public function setUrl($url): static {
+    public function setUrl($url) {
         $this->url = $url;
 
         return $this;
diff --git a/src/Controls/AutoCompleteInput.php b/src/Controls/AutoCompleteInput.php
index 71761ed..014be64 100644
--- a/src/Controls/AutoCompleteInput.php
+++ b/src/Controls/AutoCompleteInput.php
@@ -12,7 +12,7 @@ class AutoCompleteInput extends TextInput {
 
 	private array $settings = [];
 
-	public string|array $source = '';
+	public $source = '';
 
 	/**
 	 * @param null       $label
@@ -54,7 +54,7 @@ public function getControl(): Html {
 	/**
 	 * 设置输入提示源
 	 */
-	public function setSource( $source ): static {
+	public function setSource( $source ) {
 		$this->source = $source;
 
 		return $this;
diff --git a/src/Controls/CaptchaInput.php b/src/Controls/CaptchaInput.php
index b667efa..b3dfc14 100644
--- a/src/Controls/CaptchaInput.php
+++ b/src/Controls/CaptchaInput.php
@@ -70,7 +70,7 @@ public function getControl(): Html {
 	 *
 	 * @return $this
 	 */
-	public function setUrl( $url ): static {
+	public function setUrl( $url ) {
 		$this->url = $url;
 
 		return $this;
diff --git a/src/Controls/CheckboxTreeInput.php b/src/Controls/CheckboxTreeInput.php
index 653c59e..287064e 100644
--- a/src/Controls/CheckboxTreeInput.php
+++ b/src/Controls/CheckboxTreeInput.php
@@ -3,7 +3,9 @@
 namespace Wenprise\Forms\Controls;
 
 use Nette\Forms\Controls\MultiChoiceControl;
+use Nette\InvalidArgumentException;
 use Nette\Utils\Html;
+use Nette\Utils\Strings;
 
 /**
  * 克隆输入
@@ -46,16 +48,16 @@ private function recursiveRender($list): Html {
         return $html;
     }
 
-    public function setValue($values): CheckboxTreeInput|static {
+    public function setValue($values) {
         if (is_scalar($values) || $values === null) {
             $values = (array)$values;
         } elseif ( ! is_array($values)) {
-            throw new \Nette\InvalidArgumentException(sprintf("Value must be array or NULL, %s given in field '%s'.", gettype($values), $this->name));
+            throw new InvalidArgumentException(sprintf("Value must be array or NULL, %s given in field '%s'.", gettype($values), $this->name));
         }
         $flip = [];
         foreach ($values as $value) {
             if ( ! is_scalar($value) && ! method_exists($value, '__toString')) {
-                throw new \Nette\InvalidArgumentException(sprintf("Values must be scalar, %s given in field '%s'.", gettype($value), $this->name));
+                throw new InvalidArgumentException(sprintf("Values must be scalar, %s given in field '%s'.", gettype($value), $this->name));
             }
             $flip[ (string)$value ] = true;
         }
@@ -67,16 +69,16 @@ public function setValue($values): CheckboxTreeInput|static {
             $nestedKeys[] = $key;
         });
         if ($diff = array_diff($values, $nestedKeys)) {
-            $range = \Nette\Utils\Strings::truncate(implode(', ', array_map(function ($s) { return var_export($s, true); }, $nestedKeys)), 70, '...');
+            $range = Strings::truncate(implode(', ', array_map(function ($s) { return var_export($s, true); }, $nestedKeys)), 70, '...');
             $vals  = (count($diff) > 1 ? 's' : '') . " '" . implode("', '", $diff) . "'";
-            throw new \Nette\InvalidArgumentException("Value$vals are out of allowed range [$range] in field '{$this->name}'.");
+            throw new InvalidArgumentException("Value$vals are out of allowed range [$range] in field '$this->name'.");
         }
         $this->value = $values;
 
         return $this;
     }
 
-    public function getLabel($caption = null): Html|string|null {
+    public function getLabel($caption = null) {
         return parent::getLabel($caption)->for(null);
     }
 
diff --git a/src/Controls/CsrfInput.php b/src/Controls/CsrfInput.php
index c078c36..96f07e9 100644
--- a/src/Controls/CsrfInput.php
+++ b/src/Controls/CsrfInput.php
@@ -14,7 +14,7 @@ class CsrfInput extends HiddenField
 
 
     /**
-     * @param string|object
+     * @param string|object $errorMessage
      */
     public function __construct($errorMessage)
     {
diff --git a/src/Controls/GroupInput.php b/src/Controls/GroupInput.php
index d558d5d..5184d60 100644
--- a/src/Controls/GroupInput.php
+++ b/src/Controls/GroupInput.php
@@ -13,12 +13,12 @@ class GroupInput extends TextInput {
 	/**
 	 * @var string|null
 	 */
-	public string|null $prefix;
+	public $prefix;
 
 	/**
 	 * @var string|null
 	 */
-	public string|null $suffix;
+	public $suffix;
 
 
 	/**
@@ -46,7 +46,7 @@ public function __construct( $label = null, $maxLength = null, string $prefix =
 	 *
 	 * @return $this
 	 */
-	public function setPrefix( string $prefix ): static {
+	public function setPrefix( string $prefix ) {
 		$this->prefix = $prefix;
 
 		return $this;
@@ -60,7 +60,7 @@ public function setPrefix( string $prefix ): static {
 	 *
 	 * @return $this
 	 */
-	public function setSuffix( string $suffix ): static {
+	public function setSuffix( string $suffix ) {
 		$this->suffix = $suffix;
 
 		return $this;
diff --git a/src/Controls/HtmlContent.php b/src/Controls/HtmlContent.php
index 77ae33c..c034df2 100644
--- a/src/Controls/HtmlContent.php
+++ b/src/Controls/HtmlContent.php
@@ -36,7 +36,7 @@ public function getLabel( $caption = null ): void {
      *
 	 * @return string
 	 */
-	public function getControl(object|string $caption = null ): string {
+	public function getControl( $caption = null ): string {
 		$this->setOption( 'rendered', true );
 
 		return $this->getCaption();
diff --git a/src/Controls/InquiryInput.php b/src/Controls/InquiryInput.php
index edc0541..dbba66a 100644
--- a/src/Controls/InquiryInput.php
+++ b/src/Controls/InquiryInput.php
@@ -140,7 +140,7 @@ public function getControl(): string
                             <?php foreach ($fields as $field): ?>
                                 <?php
                                 $field_type = Helpers::data_get($field, 'type', 'text');
-                                $field_name= Helpers::data_get($field, 'name', );
+                                $field_name= Helpers::data_get($field, 'name' );
                                 ?>
                                 <td>
                                     <?php if ( $field_type === 'text' ) : ?>
@@ -151,7 +151,7 @@ public function getControl(): string
                                         <textarea x-model="field.<?= $field_name; ?>" name="<?= $field_name; ?>[]" cols="30" rows="10"></textarea>
                                     <?php elseif($field_type === 'select'): ?>
                                         <select x-model="field.<?= $field_name; ?>" name="<?= $field_name; ?>[]">
-                                            <?php foreach (Helpers::data_get($field, 'options', ) as $option_key => $option_value): ?>
+                                            <?php foreach (Helpers::data_get($field, 'options' ) as $option_key => $option_value): ?>
                                                 <option value="<?= $option_key; ?>"><?= $option_value; ?></option>
                                             <?php endforeach; ?>
                                         </select>
@@ -192,7 +192,7 @@ public function getControl(): string
                             <?php foreach ($fields as $field): ?>
                                 <?php
                                 $field_type = Helpers::data_get($field, 'type', 'text');
-                                $field_name= Helpers::data_get($field, 'name', );
+                                $field_name= Helpers::data_get($field, 'name' );
                                 ?>
                                 <div class="rs-form-group rs-form--text rs-row rs-col-md-12" id="rs-form-company_name">
                                     <div class="rs-col-sm-3 rs-control-label">
@@ -207,7 +207,7 @@ public function getControl(): string
                                             <textarea x-model="_field._<?= $field_name; ?>" name="_<?= $field_name; ?>" cols="30" rows="10" class="form-control rs-form-control"></textarea>
                                         <?php elseif($field_type === 'select'): ?>
                                             <select x-model="_field._<?= $field_name; ?>" name="_<?= $field_name; ?>">
-                                                <?php foreach (Helpers::data_get($field, 'options', ) as $option_key => $option_value): ?>
+                                                <?php foreach (Helpers::data_get($field, 'options' ) as $option_key => $option_value): ?>
                                                     <option value="<?= $option_key; ?>"><?= $option_value; ?></option>
                                                 <?php endforeach; ?>
                                             </select>
diff --git a/src/Controls/SmsInput.php b/src/Controls/SmsInput.php
index 94895c0..e4c7740 100644
--- a/src/Controls/SmsInput.php
+++ b/src/Controls/SmsInput.php
@@ -79,7 +79,7 @@ public function getControl(): Html
      *
      * @return $this
      */
-    public function setUrl($url): static
+    public function setUrl($url)
     {
         $this->url = $url;
 
diff --git a/src/Controls/WpUploaderInput.php b/src/Controls/WpUploaderInput.php
index eb41862..ef3a915 100644
--- a/src/Controls/WpUploaderInput.php
+++ b/src/Controls/WpUploaderInput.php
@@ -27,12 +27,12 @@ class WpUploaderInput extends BaseControl {
 
 	/**
 	 * @param null       $label
-	 * @param bool
-	 * @param array|null $settings Chosen 设置
+	 * @param bool       $multiple
+     * @param array|null $settings Chosen 设置
 	 */
-	public function __construct( $label = null, $multiple = false, array $settings = null ) {
+	public function __construct($label = null, bool $multiple = false, array $settings = null ) {
 		parent::__construct( $label );
-		$this->control->multiple = (bool) $multiple;
+		$this->control->multiple = $multiple;
 		$this->control->type     = 'text';
 		$this->settings          = (array) $settings;
 
diff --git a/src/Form.php b/src/Form.php
index c983e7e..c112b33 100644
--- a/src/Form.php
+++ b/src/Form.php
@@ -10,7 +10,7 @@
 class Form extends \Nette\Forms\Form implements HtmlStringable
 {
 
-    public IDatastore|null $datastore = null;
+    public $datastore = null;
 
     /**
      * @param \Wenprise\Forms\Datastores\IDatastore $datastore
diff --git a/src/Helpers.php b/src/Helpers.php
index 71f298d..3759762 100755
--- a/src/Helpers.php
+++ b/src/Helpers.php
@@ -2,6 +2,8 @@
 
 namespace Wenprise\Forms;
 
+use Closure;
+
 class Helpers
 {
 
@@ -12,7 +14,7 @@ class Helpers
      *
      * @return false|string
      */
-    public static function get_grandparent_class($object): bool|string
+    public static function get_grandparent_class($object)
     {
         if (is_object($object)) {
             $object = get_class($object);
@@ -29,9 +31,9 @@ public static function get_grandparent_class($object): bool|string
      *
      * @return mixed
      */
-    public static function value(mixed $value): mixed
+    public static function value($value)
     {
-        return $value instanceof \Closure ? $value() : $value;
+        return $value instanceof Closure ? $value() : $value;
     }
 
 
@@ -44,7 +46,7 @@ public static function value(mixed $value): mixed
      *
      * @return mixed
      */
-    public static function data_get(array $array, string $key, mixed $default = null): mixed
+    public static function data_get(array $array, string $key, $default = null)
     {
 
         if (isset($array[ $key ])) {
@@ -71,7 +73,7 @@ public static function data_get(array $array, string $key, mixed $default = null
      *
      * @return mixed|null
      */
-    public static function http_get($key = null, $default = null): mixed
+    public static function input_get($key = null, $default = null)
     {
         return static::data_get($_REQUEST, $key, $default);
     }
@@ -116,7 +118,7 @@ public static function dir_to_url($directory): string
      *
      * @return mixed
      */
-    public static function get_manifest(): mixed
+    public static function get_manifest()
     {
         static $manifest;
         static $manifest_path;
diff --git a/src/Init.php b/src/Init.php
index 0c39c6e..65e674f 100755
--- a/src/Init.php
+++ b/src/Init.php
@@ -105,7 +105,7 @@ function register_assets(): void
      *
      * @return void
      */
-    #[NoReturn] function save_form_data(): void
+    function save_form_data(): void
     {
         $data = $_POST;
 
diff --git a/src/Renders/AdminFormRender.php b/src/Renders/AdminFormRender.php
index fbd07ba..f534fbc 100644
--- a/src/Renders/AdminFormRender.php
+++ b/src/Renders/AdminFormRender.php
@@ -11,7 +11,7 @@ class AdminFormRender extends BaseFormRender
 {
     use Nette\SmartObject;
 
-    var mixed $type = 'post_meta';
+    var $type = 'post_meta';
 
     public function __construct($type = 'post_meta')
     {
diff --git a/src/Renders/BaseFormRender.php b/src/Renders/BaseFormRender.php
index 3266c21..4bf2f43 100644
--- a/src/Renders/BaseFormRender.php
+++ b/src/Renders/BaseFormRender.php
@@ -3,6 +3,7 @@
 namespace Wenprise\Forms\Renders;
 
 use Nette;
+use Nette\InvalidArgumentException;
 use Nette\Utils\Html;
 use Nette\HtmlStringable;
 
@@ -43,14 +44,14 @@ public function __construct($type = 'horizontal')
     /**
      * 渲染控件组，主要添加 Html render
      *
-     * @param Nette\Forms\Container|Nette\Forms\ControlGroup
+     * @param Nette\Forms\Container|Nette\Forms\ControlGroup $parent
      *
      * @return string
      */
     public function renderControls($parent): string
     {
         if ( ! ($parent instanceof Nette\Forms\Container || $parent instanceof Nette\Forms\ControlGroup)) {
-            throw new \Nette\InvalidArgumentException('Argument must be Nette\Forms\Container or Nette\Forms\ControlGroup instance.');
+            throw new InvalidArgumentException('Argument must be Nette\Forms\Container or Nette\Forms\ControlGroup instance.');
         }
 
         $container = $this->getWrapper('controls container');
@@ -89,7 +90,7 @@ public function renderControls($parent): string
     /**
      * 在一行中渲染多个控件，主要添加 wrapper class
      *
-     * @param Nette\Forms\IControl[]
+     * @param Nette\Forms\IControl[] $controls
      *
      * @return string
      */
@@ -98,7 +99,7 @@ public function renderPairMulti(array $controls): string
         $s = [];
         foreach ($controls as $control) {
             if ( ! $control instanceof Nette\Forms\Control) {
-                throw new Nette\InvalidArgumentException('Argument must be array of Nette\Forms\IControl instances.');
+                throw new InvalidArgumentException('Argument must be array of Nette\Forms\IControl instances.');
             }
 
             $description = $control->getOption('description');
@@ -161,7 +162,7 @@ public function renderPairMulti(array $controls): string
      *
      * @return \Nette\Utils\Html|string
      */
-    public function renderControlGroup($control): Html|string
+    public function renderControlGroup($control)
     {
         $html = '';
 
diff --git a/src/Renders/FormRender.php b/src/Renders/FormRender.php
index c02167e..5434111 100644
--- a/src/Renders/FormRender.php
+++ b/src/Renders/FormRender.php
@@ -115,7 +115,7 @@ class FormRender extends Nette\Forms\Rendering\DefaultFormRenderer
     /**
      * 渲染控件组
      *
-     * @param Nette\Forms\Container|Nette\Forms\ControlGroup
+     * @param Nette\Forms\Container|Nette\Forms\ControlGroup $parent
      *
      * @return string
      */
@@ -206,7 +206,7 @@ public function renderPair(Nette\Forms\Control $control): string
             }
 
             // 中间
-            $group->addHtml($this->renderControl($control->setAttribute('class', 'rs-form-control'))
+            $group->addHtml($this->renderControl($control->setHtmlAttribute('class', 'rs-form-control'))
                                  ->getChildren()[ 0 ]);
 
             // 后缀
@@ -245,7 +245,7 @@ public function renderPair(Nette\Forms\Control $control): string
     /**
      * 在一行中渲染多个控件
      *
-     * @param Nette\Forms\IControl[]
+     * @param Nette\Forms\IControl[] $controls
      *
      * @return string
      */
@@ -253,7 +253,7 @@ public function renderPairMulti(array $controls): string
     {
         $s = [];
         foreach ($controls as $control) {
-            if ( ! $control instanceof Nette\Forms\IControl) {
+            if ( ! $control instanceof Nette\Forms\Control) {
                 throw new Nette\InvalidArgumentException('Argument must be array of Nette\Forms\IControl instances.');
             }