PHP的error_reporting错误级别变量对照表
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2023-11-15 23:45:52
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...
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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