这篇文章主要介绍了PHP的error_reporting错误级别变量对照表,需要的朋友可以参考下
在PHP中所有的报错信息可以用error_reporting()这个函数来设置:
它的参数有字符串和数字两种表示方法,共14个等级,但是呢,我看使用其他数字貌似也可以,起初我以为它指的是一定的报错区间,后来,终于发现了其中的规律:
复制代码 代码如下:error_reporting( 7 ) = error_reporting( 1+2+4)= error_reporting(E_ERROR | E_WARING | E_PARSE)
现在,我将其总结如下:
数字 |
常量 |
说明 |
1 |
E_ERROR |
致命错误,脚本执行中断,就是脚本中有不可识别的东西出现
举例: Error:Invalid parameters. Invalid parameter name |
2 |
E_WARNING |
部分代码出错,但不影响整体运行
举例: Warning: require_once(E:/include/config_base.php) |
4 |
E_PARSE |
字符、变量或结束的地方写规范有误
举例: Parse error: syntax error, unexpected $end in |
8 |
E_NOTICE |
一般通知,如变量未定义等
举例: Notice: Undefined variable: p in E:\web\index.php on line 17 |
16 |
E_CORE_ERROR |
PHP进程在启动时,发生了致命性错误
举例: 暂无 |
32 |
E_CORE_WARNING |
在PHP启动时警告(非致命性错误)
举例: 暂无 |
64 |
E_COMPILE_ERROR |
编译时致命性错误
举例: 暂无 |
128 |
E_COMPILE_WARNING |
编译时警告级错误
举例: 暂无 |
256 |
E_USER_ERROR |
用户自定义的错误消息
举例: 暂无 |
512 |
E_USER_WARNING |
用户自定义的警告消息
举例: 暂无 |
1024 |
E_USER_NOTICE |
用户自定义的提醒消息
举例: 暂无 |
2047 |
E_ALL |
以上所有的报错信息,但不包括E_STRICT的报错信息
举例: 暂无 |
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。 |
error_reporting 变量的默认值是 E_ALL & ~E_NOTICE
开发时,最佳的值为: E_ALL | E_STRICT
如果设置为:error_reporting(E_ALL | E_STRICT),则表示记录所有的错误信息
可能会导致网站出现一大堆的错误代码;但是对于程序员来说应该说是一件好事,可以把代码优化到最优; 一些非致命性错误虽然不影响程序的运行,但是会加重PHP的负担.
最后,晒出英文版的对照表:
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) |
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