PHP error_reporting() 函数

本文介绍了PHP中的error_reporting函数,详细解释了如何通过设置不同的级别来控制哪些类型的错误会被报告。文章还提供了示例代码,展示了如何使用该函数来管理运行时错误。

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定义和用法

error_reporting() 设置 PHP 的报错级别并返回当前级别。

语法

error_reporting(report_level)

如果参数 level 未指定,当前报错级别将被返回。下面几项是 level 可能的值:

常量描述
1E_ERRORFatal run-time errors. Errors that can not be recovered from. Execution of the script is halted
2E_WARNINGNon-fatal run-time errors. Execution of the script is not halted
4E_PARSECompile-time parse errors. Parse errors should only be generated by the parser
8E_NOTICERun-time notices. The script found something that might be an error, but could also happen when running a script normally
16E_CORE_ERRORFatal errors at PHP startup. This is like an E_ERROR in the PHP core
32E_CORE_WARNINGNon-fatal errors at PHP startup. This is like an E_WARNING in the PHP core
64E_COMPILE_ERRORFatal compile-time errors. This is like an E_ERROR generated by the Zend Scripting Engine
128E_COMPILE_WARNINGNon-fatal compile-time errors. This is like an E_WARNING generated by the Zend Scripting Engine
256E_USER_ERRORFatal user-generated error. This is like an E_ERROR set by the programmer using the PHP function trigger_error()
512E_USER_WARNINGNon-fatal user-generated warning. This is like an E_WARNING set by the programmer using the PHP function trigger_error()
1024E_USER_NOTICEUser-generated notice. This is like an E_NOTICE set by the programmer using the PHP function trigger_error()
2048E_STRICTRun-time notices. PHP suggest changes to your code to help interoperability and compatibility of the code
4096E_RECOVERABLE_ERRORCatchable fatal error. This is like an E_ERROR but can be caught by a user defined handle (see also set_error_handler())
8191E_ALLAll errors and warnings, except level E_STRICT (E_STRICT will be part of E_ALL as of PHP 6.0)

例子

任意数目的以上选项都可以用“或”来连接(用 OR 或 |),这样可以报告所有需要的各级别错误。例如,下面的代码关闭了用户自定义的错误和警告,执行了某些操作,然后恢复到原始的报错级别:

<?php
//禁用错误报告
error_reporting(0);

//报告运行时错误
error_reporting(E_ERROR | E_WARNING | E_PARSE);

//报告所有错误
error_reporting(E_ALL);
?>

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