diff --git a/framework/validators/CDateValidator.php b/framework/validators/CDateValidator.php
index eac6b7884..2a875d9cc 100644
--- a/framework/validators/CDateValidator.php
+++ b/framework/validators/CDateValidator.php
@@ -55,7 +55,7 @@ class CDateValidator extends CValidator
 		$valid=false;
 
 		// reason of array checking is explained here: https://github.com/yiisoft/yii/issues/1955
-        // checking for `null` as passing `null` to CDateTimeParser::parse will throw a deprecation error in PHP >= 8.1
+		// checking for `null` as passing `null` to CDateTimeParser::parse will throw a deprecation error in PHP >= 8.1
 		if(!is_array($value) && $value !== null)
 		{
 			$formats=is_string($this->format) ? array($this->format) : $this->format;
diff --git a/tests/framework/web/helpers/CHtmlTest.php b/tests/framework/web/helpers/CHtmlTest.php
index 048ba2d04..5b9f45500 100644
--- a/tests/framework/web/helpers/CHtmlTest.php
+++ b/tests/framework/web/helpers/CHtmlTest.php
@@ -178,7 +178,7 @@ class CHtmlTest extends CTestCase
 		);
 	}
 
-    /**
+	/**
 	 * @dataProvider providerCloseTag
 	 *
 	 * @param string $tag
@@ -402,11 +402,11 @@ class CHtmlTest extends CTestCase
 				array('async'=>true),
 				"<script type=\"text/javascript\" async=\"async\">\n/*<![CDATA[*/\nvar a = 10;\n/*]]>*/\n</script>"
 			),
-            array(
-                'var a = 10;',
-                array('async'=>false),
-                "<script type=\"text/javascript\" async=\"false\">\n/*<![CDATA[*/\nvar a = 10;\n/*]]>*/\n</script>"
-            ),
+			array(
+				'var a = 10;',
+				array('async'=>false),
+				"<script type=\"text/javascript\" async=\"false\">\n/*<![CDATA[*/\nvar a = 10;\n/*]]>*/\n</script>"
+			),
 		);
 	}
 
@@ -644,12 +644,12 @@ class CHtmlTest extends CTestCase
 			array(array('v1'),0,'defaultValue','v1'),
 			array(array('v1'),0.0,'defaultValue','v1'),
 
-            // Test $model as an array, with null as a key, see: https://github.com/yiisoft/yii/pull/4503#discussion_r1054516859
-            array(array(null=>'v1','k2'=>'v2'),null,'defaultValue','v1'),
-            array(array(null=>'v1','k2'=>'v2'),'','defaultValue','v1'),
-            array(array(''=>'v1','k2'=>'v2'),null,'defaultValue','v1'),
-            array(array(''=>'v1','k2'=>'v2'),'','defaultValue','v1'),
-            array(array(null=>'v1','k2'=>'v2'),'k2','defaultValue','v2'),
+			// Test $model as an array, with null as a key, see: https://github.com/yiisoft/yii/pull/4503#discussion_r1054516859
+			array(array(null=>'v1','k2'=>'v2'),null,'defaultValue','v1'),
+			array(array(null=>'v1','k2'=>'v2'),'','defaultValue','v1'),
+			array(array(''=>'v1','k2'=>'v2'),null,'defaultValue','v1'),
+			array(array(''=>'v1','k2'=>'v2'),'','defaultValue','v1'),
+			array(array(null=>'v1','k2'=>'v2'),'k2','defaultValue','v2'),
 		);
 
 		// create_function is not supported by CHtml::value(), we're just testing this feature/property
@@ -1175,7 +1175,7 @@ class CHtmlTestModel extends CModel
 	 */
 	public $attr4;
 
-    /**
+	/**
 	 * Returns the list of attribute names.
 	 * @return array list of attribute names. Defaults to all public properties of the class.
 	 */