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PHP error_reporting() 函數(shù)

定義和用法

error_reporting() 設(shè)置 PHP 的報錯級別并返回當前級別。

語法

error_reporting(report_level)

如果參數(shù) level 未指定，當前報錯級別將被返回。下面幾項是 level 可能的值：

值 常量 描述
1 E_ERROR Fatal run-time errors. Errors that can not be recovered from. Execution of the script is halted
2 E_WARNING Non-fatal run-time errors. Execution of the script is not halted
4 E_PARSE Compile-time parse errors. Parse errors should only be generated by the parser
8 E_NOTICE Run-time notices. The script found something that might be an error, but could also happen when running a script normally
16 E_CORE_ERROR Fatal errors at PHP startup. This is like an E_ERROR in the PHP core
32 E_CORE_WARNING Non-fatal errors at PHP startup. This is like an E_WARNING in the PHP core
64 E_COMPILE_ERROR Fatal compile-time errors. This is like an E_ERROR generated by the Zend Scripting Engine
128 E_COMPILE_WARNING Non-fatal compile-time errors. This is like an E_WARNING generated by the Zend Scripting Engine
256 E_USER_ERROR Fatal user-generated error. This is like an E_ERROR set by the programmer using the PHP function trigger_error()
512 E_USER_WARNING Non-fatal user-generated warning. This is like an E_WARNING set by the programmer using the PHP function trigger_error()
1024 E_USER_NOTICE User-generated notice. This is like an E_NOTICE set by the programmer using the PHP function trigger_error()
2048 E_STRICT Run-time notices. PHP suggest changes to your code to help interoperability and compatibility of the code
4096 E_RECOVERABLE_ERROR Catchable fatal error. This is like an E_ERROR but can be caught by a user defined handle (see also set_error_handler())
8191 E_ALL All errors and warnings, except level E_STRICT (E_STRICT will be part of E_ALL as of PHP 6.0)

例子

任意數(shù)目的以上選項都可以用“或”來連接（用 OR 或 |），這樣可以報告所有需要的各級別錯誤。例如，下面的代碼關(guān)閉了用戶自定義的錯誤和警告，執(zhí)行了某些操作，然后恢復(fù)到原始的報錯級別：

<?php
//禁用錯誤報告
error_reporting(0);

//報告運行時錯誤
error_reporting(E_ERROR | E_WARNING | E_PARSE);

//報告所有錯誤
error_reporting(E_ALL);
?>