{"id":8414,"date":"2025-09-22T06:56:01","date_gmt":"2025-09-22T06:56:01","guid":{"rendered":"https:\/\/studysection.com\/blog\/?p=8414"},"modified":"2025-09-22T07:02:32","modified_gmt":"2025-09-22T07:02:32","slug":"decorator-in-php","status":"publish","type":"post","link":"https:\/\/studysection.com\/blog\/decorator-in-php\/","title":{"rendered":"Decorator in PHP"},"content":{"rendered":"<p>PHP utilizes classes and interfaces to implement the decorator pattern. In <a href=\"https:\/\/studysection.com\/blog\/fast-paced-introduction-to-oop-in-php\/\">object-oriented<\/a> design, a class defines a user-defined datatype, encapsulating both properties and methods.<\/p>\n<p>On the other hand, an interface in PHP serves as a contract for classes, specifying a set of methods that implementing classes must adhere to. It is declared using the interface keyword.<\/p>\n<p>Here&#8217;s the basic syntax for defining an interface in PHP:<\/p>\n<pre><code>interface MyInterface {\r\n\/\/ Method declarations\r\npublic function method1();\r\npublic function method2($param);\r\n}<\/code><\/pre>\n<p><strong>Example of a Decorator in PHP:<\/strong><\/p>\n<p>Certainly! Here&#8217;s an example of the <a href=\"https:\/\/blog.webnersolutions.com\/decorators-in-lightning-web-component\/\">decorator<\/a> pattern in PHP. In this example, let&#8217;s create a simple TextFormatter interface and a concrete class PlainTextFormatter. We&#8217;ll then implement two decorators, BoldTextFormatter and ItalicTextFormatter, to demonstrate how decorators can enhance the behavior of the base component:<\/p>\n<pre><code>&lt;?php\r\n\/\/ Component interface\r\ninterface TextFormatter {\r\n    public function format(string $text): string;\r\n}\r\n\r\n\/\/ ConcreteComponent\r\nclass PlainTextFormatter implements TextFormatter {\r\n    public function format(string $text): string {\r\n        return $text;\r\n    }\r\n}\r\n\r\n\/\/ Decorator\r\nabstract class TextDecorator implements TextFormatter {\r\n    protected $textFormatter;\r\n\r\n    public function __construct(TextFormatter $textFormatter) {\r\n        $this-&gt;textFormatter = $textFormatter;\r\n    }\r\n    public function format(string $text): string {\r\n        return $this-&gt;textFormatter-&gt;format($text);\r\n    }\r\n}\r\n\r\n\/\/ ConcreteDecorator\r\nclass BoldTextFormatter extends TextDecorator {\r\n    public function format(string $text): string {\r\n        return '<b>' . parent::format($text) . '<\/b>';\r\n    }\r\n}\r\n\r\n\/\/ ConcreteDecorator\r\nclass ItalicTextFormatter extends TextDecorator {\r\n    public function format(string $text): string {\r\n        return '<i>' . parent::format($text) . '<\/i>';\r\n    }\r\n}\r\n\r\n\/\/ Usage\r\n$plainTextFormatter = new PlainTextFormatter();\r\necho \"Plain Text: \" . $plainTextFormatter-&gt;format(\"Hello, World!\") . PHP_EOL;\r\n\r\n$boldTextFormatter = new BoldTextFormatter($plainTextFormatter);\r\necho \"Bold Text: \" . $boldTextFormatter-&gt;format(\"Hello, World!\") . PHP_EOL;\r\n\r\n$italicTextFormatter = new ItalicTextFormatter($plainTextFormatter);\r\necho \"Italic Text: \" . $italicTextFormatter-&gt;format(\"Hello, World!\") . PHP_EOL;\r\n\r\n$boldItalicTextFormatter = new BoldTextFormatter($italicTextFormatter);\r\necho \"Bold and Italic Text: \" . $boldItalicTextFormatter-&gt;format(\"Hello, World!\") . PHP_EOL;\r\n?&gt;<\/code><\/pre>\n<p><strong>In the above example:<\/strong><\/p>\n<ul>\n<li>TextFormatter is the component interface representing the base object that can be decorated.<\/li>\n<li>PlainTextFormatter is the concrete component implementing the TextFormatter interface.<\/li>\n<li>TextDecorator is the abstract decorator class that extends the TextFormatter interface and contains a reference to a TextFormatter object.<\/li>\n<li>BoldTextFormatter and ItalicTextFormatter are concrete decorator classes that extend TextDecorator and add specific formatting functionalities to the base text.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>PHP utilizes classes and interfaces to implement the decorator pattern. In object-oriented design, a class defines a user-defined datatype, encapsulating<\/p>\n","protected":false},"author":1,"featured_media":8415,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Decorator in PHP<\/title>\n<meta name=\"description\" content=\"PHP utilizes classes and interfaces to implement the decorator pattern. 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