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HomeBackend DevelopmentPHP Tutorialphp关闭warning问题的解决方法_PHP

error_reporting 设定错误讯息回报的等级

2047我记得应该是E_ALL。

php.ini 文件中有许多配置设置。您应当已经设置好自己的php.ini 文件并把它放在合适的目录中,就像在 Linux 上安装PHP 和 Apache 2 的文档说明中所示的那样(请参阅 参考资料)。在调试PHP 应用程序时,应当知道两个配置变量。下面是这两个变量及其默认值:

display_errors = Off
error_reporting = E_ALL

E_ALL能从不良编码实践到无害提示到出错的所有信息。E_ALL 对于开发过程来说有点太细,因为它在屏幕上为一些小事(例如变量未初始化)也显示提示,会搞糟浏览器的输出

所以不建议使用2047,最好把默认值改为:error_reporting = E_ALL & ~E_NOTICE

PHP.ini中display_errors = Off失效的解决

问题:

PHP设置文件php.ini中明明已经设置display_errors = Off,但是在运行过程中,网页上还是会出现错误信息。

解决:

经查log_errors= On,据官方的说法,当这个log_errors设置为On,那么必须指定error_log文件,如果没指定或者指定的文件没有权限写入,那么照样会输出到正常的输出渠道,那么也就使得display_errors 这个指定的Off失效,错误信息还是打印了出来。于是将log_errors = Off,问题就解决了。

经常见到error_reporting(7)直意为:设定错误讯息回报的等级。

value   constant    
  1   E_ERROR      
  2   E_WARNING      
  4   E_PARSE      
  8   E_NOTICE      
  16   E_CORE_ERROR      
  32   E_CORE_WARNING      
  64   E_COMPILE_ERROR      
  128   E_COMPILE_WARNING      
  256   E_USER_ERROR      
  512   E_USER_WARNING      
  1024   E_USER_NOTICE      
  2047   E_ALL      
  2048   E_STRICT      
然而7=1+2+4

就是出错时显示1 E_ERROR    2 E_WARNING     4 E_PARSE

以上这篇php关闭warning问题的解决方法就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持。

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