php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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