{"id":1198,"date":"2024-05-29T21:26:41","date_gmt":"2024-05-29T19:26:41","guid":{"rendered":"https:\/\/wypo.io\/rendre-une-fonction-php-obsolete\/"},"modified":"2024-06-18T08:18:59","modified_gmt":"2024-06-18T06:18:59","slug":"deprecating-php-function","status":"publish","type":"post","link":"https:\/\/wypo.io\/en\/deprecating-php-function\/","title":{"rendered":"Deprecating a PHP function"},"content":{"rendered":"\n

To deprecate a function in WordPress, you can use the trigger_error<\/code> function to issue a warning and inform developers that the function should no longer be used. In addition, you can provide a recommended alternative and indicate the version from which the function is deprecated.<\/p>\n\n\n\n

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Steps to make a function deprecated<\/h2>\n\n\n\n
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  1. Add depreciation warning<\/strong>: Use trigger_error<\/code> to generate a warning when an deprecated function is called.<\/li>\n\n\n\n
  2. Specify alternative<\/strong>: Provide a suggestion for an alternative function or updated method.<\/li>\n\n\n\n
  3. Documentation<\/strong>: Document in the code the version from which the function is deprecated and why.<\/li>\n<\/ol>\n\n <\/div>\r\n <\/div>\r\n <\/div>\r\n <\/div>\n\n\n\n
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    Example<\/h2>\n\n\n\n

    Suppose you have a function called my_old_function<\/code> that you want to make deprecated.<\/p>\n\n\n

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    \n PHP <\/div>\n <\/header>\n <?php\nif (!function_exists('my_old_function')) {\n \/**\n * My Old Function\n *\n * @deprecated 1.0.0 Use my_new_function() instead.\n *\/\n function my_old_function() {\n \/\/ Get the backtrace\n $backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2);\n $caller = isset($backtrace[1]['function']) ? $backtrace[1]['function'] : 'global scope';\n $file = isset($backtrace[0]['file']) ? $backtrace[0]['file'] : 'unknown file';\n $line = isset($backtrace[0]['line']) ? $backtrace[0]['line'] : 'unknown line';\n\n \/\/ Generate a deprecated notice with caller information\n trigger_error(\n sprintf(\n __('%1$s is deprecated since version %2$s! Use %3$s instead. Called by %4$s in %5$s on line %6$s.', 'text-domain'),\n 'my_old_function()',\n '1.0.0',\n 'my_new_function()',\n $caller,\n $file,\n $line\n ),\n E_USER_DEPRECATED\n );\n\n \/\/ Call the new function as a fallback\n my_new_function();\n }\n}\n\n\/**\n * My New Function\n *\n * This is the new function that should be used instead of my_old_function.\n *\/\nfunction my_new_function() {\n \/\/ Code de la nouvelle fonction\n}\n?><\/textarea>\n