{"id":10963,"date":"2024-03-14T13:06:39","date_gmt":"2024-03-14T13:06:39","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-is-the-purpose-of-the-static-keyword-in-php\/"},"modified":"2025-08-04T05:59:33","modified_gmt":"2025-08-04T05:59:33","slug":"what-is-the-purpose-of-the-static-keyword-in-php","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-is-the-purpose-of-the-static-keyword-in-php\/","title":{"rendered":"PHP Static Keyword Explained"},"content":{"rendered":"

In PHP, the static keyword is mainly used in two ways.<\/p>\n

    \n
  1. In a class, the static keyword can be used to define static properties and methods. Static properties and methods can be accessed directly using the class name, without the need to create an instance of the class. Static properties and methods are shared across all instances of the class. For example:<\/li>\n<\/ol>\n
    class<\/span> MyClass<\/span> <\/span>{\r\n    public<\/span> static<\/span> $staticProperty<\/span> = 10<\/span>;\r\n\r\n    public<\/span> static<\/span> function<\/span> staticMethod<\/span>(<\/span>) <\/span>{\r\n        return<\/span> \"Static method called\"<\/span>;\r\n    }\r\n}\r\n\r\necho<\/span> MyClass<\/span>::$staticProperty<\/span>; \/\/ \u8f93\u51fa 10<\/span>\r\necho<\/span> MyClass<\/span>::staticMethod<\/span>(); \/\/ \u8f93\u51fa Static method called<\/span>\r\n<\/code><\/pre>\n
      \n
    1. In a function, the static keyword can be used to define static variables. Static variables are not destroyed after the function call ends, but instead retain their value for the next call to use. For example:<\/li>\n<\/ol>\n
      function<\/span> increment<\/span>(<\/span>) <\/span>{\r\n    static<\/span> $count<\/span> = 0<\/span>;\r\n    $count<\/span>++;\r\n    return<\/span> $count<\/span>;\r\n}\r\n\r\necho<\/span> increment<\/span>(); \/\/ \u8f93\u51fa 1<\/span>\r\necho<\/span> increment<\/span>(); \/\/ \u8f93\u51fa 2<\/span>\r\necho<\/span> increment<\/span>(); \/\/ \u8f93\u51fa 3<\/span>\r\n<\/code><\/pre>\n
      In general, the static keyword is used to define static properties and methods of a class, or to define static variables within a function, allowing them to share data or state among different instances.<\/p>\n","protected":false},"excerpt":{"rendered":"
      In PHP, the static keyword is mainly used in two ways. In a class, the static keyword can be used to define static properties and methods. Static properties and methods can be accessed directly using the class name, without the need to create an instance of the class. Static properties and methods are shared across […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[2926,13936,13937,691,13935],"class_list":["post-10963","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-php-oop","tag-php-static-methods","tag-php-static-properties","tag-php-tutorials","tag-static-keyword-in-php"],"yoast_head":"\nPHP Static Keyword Explained - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how static keyword works in PHP for properties & methods with practical examples.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/what-is-the-purpose-of-the-static-keyword-in-php\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PHP Static Keyword Explained\" \/>\n<meta property=\"og:description\" content=\"Learn how static keyword works in PHP for properties & methods with practical examples.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/what-is-the-purpose-of-the-static-keyword-in-php\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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