PHP error_reporting() 错误控制函数功能详解
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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。 函数语法: 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: 值 常量 描述 1 E_ERROR 致命的运行错误。错误无法恢复,暂停执行脚本。 2 E_WARNING 运行时警告(非致命性错误)。非致命的运行错误,脚本执行不会停止。 4 E_PARSE 编译时解析错误。解析错误只由分析器产生。 8 E_NOTICE 运行时提醒(这些经常是你代码中的bug引起的,也可能是有意的行为造成的。) 16 E_CORE_ERROR PHP启动时初始化过程中的致命错误。 32 E_CORE_WARNING PHP启动时初始化过程中的警告(非致命性错)。 64 E_COMPILE_ERROR 编译时致命性错。这就像由Zend脚本引擎生成了一个E_ERROR。 128 E_COMPILE_WARNING 编译时警告(非致命性错)。这就像由Zend脚本引擎生成了一个E_WARNING警告。 256 E_USER_ERROR 用户自定义的错误消息。这就像由使用PHP函数trigger_error(程序员设置E_ERROR) 512 E_USER_WARNING 用户自定义的警告消息。这就像由使用PHP函数trigger_error(程序员设定的一个E_WARNING警告) 1024 E_USER_NOTICE 用户自定义的提醒消息。这就像一个由使用PHP函数trigger_error(程序员一个E_NOTICE集) 2048 E_STRICT 编码标准化警告。允许PHP建议如何修改代码以确保最佳的互操作性向前兼容性。 4096 E_RECOVERABLE_ERROR 开捕致命错误。这就像一个E_ERROR,但可以通过用户定义的处理捕获(又见set_error_handler()) 8191 E_ALL 所有的错误和警告(不包括 E_STRICT) (E_STRICT will be part of E_ALL as of PHP 6.0)
Copy after login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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