1: E_ERROR Fatal running error. The error cannot be recovered, and the script execution is suspended. 2: E_WARNING Runtime warning (non-fatal error), script execution."/> 1: E_ERROR Fatal running error. The error cannot be recovered, and the script execution is suspended. 2: E_WARNING Runtime warning (non-fatal error), script execution.">
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HomeBackend DevelopmentPHP TutorialPHP insert headercontent-type:text/html;charset='utf-8 and error_reporting

1.header

PHP file insert header("Content-type: text/html; charset=utf-8");
equivalent to

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)
in the page

Any number of the above options can be connected with "OR" (using OR or |), so that all required error levels can be reported.
For example, the following code turns off user-defined errors and warnings, performs certain operations, and then returns to the original error level:

<span>php
</span><span>//</span><span>禁用错误报告</span><span>error_reporting</span>(0<span>);
</span><span>//</span><span>报告运行时错误</span><span>error_reporting</span>(<span>E_ERROR</span> | <span>E_WARNING</span> | <span>E_PARSE</span><span>); 
</span><span>//</span><span>报告所有错误</span><span>error_reporting</span>(<span>E_ALL</span><span>);
</span>?>

The above introduces the PHP insertion of headercontent-type:text/html;charset="utf-8 and error_reporting, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.

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