Home > php教程 > php手册 > body text

PHP脚本不报错的两点原因

WBOY
Release: 2016-06-13 09:33:58
Original
824 people have browsed it

--------------------------------------------------------------------------------------------------

PHP程序错误一般有三种:语法错误,运行时错误,逻辑错误。

那么如果PHP脚本不报语法错,会是什么原因呢:

------------------------@author chenwei ---------------------------

1. 一般的集成环境,默认会开启错误报告; 但在linux系统中,使用软件包安装的就不一定了,

  此时可以查看PHP配置文件,打开错误报告 =>

  display_errors = On      /* PHP配置文件路径:/uer/local/php/etc/php.ini  */

 

  注:PHP脚本中动态设置php.ini配置文件的方法 =>

  ini_set('display_errors', 'On'); /* 显示所有错误 */

 

2. 设置错误报告级别 =>

  error_reporting = E_ALL;   /* 最严格的错误报告级别, 开发阶段可开启 */

  error_reporting = E_ALL &~ E_NOTICE /* 除了notice以外的错误 */

  error_reporting = E_ERROR | E_PARSE | e_CORE_ERROR /* 只考虑致命的运行时错误,新解析错误 和 核心错误 */

  以上三种,推荐中间的。

 

  注:PHP脚本中动态设置error_reporting错误报告级别的方法 =>

  error_reporting(E_ALL &~ E_NOTICE);

 

3. 更改配置文件以后,需要重启服务才能生效 =>

  Apache的启动:/usr/local/apache2/bin/apachectl start  /* 推荐 */

     另, 红帽linux专有启动命令:service httpd start

  Apache的重启:/usr/local/apache2/bin/apachectl restart

     另,红帽专有启动命令:service httpd restart

  Apache的停止:/usr/local/apache2/bin/apachectl stop

     另,红帽专有启动命令:service httpd stop

  Nginx的重启:/usr/local/nginx/sbin/nginx -s reload   /* 平滑重启 */

-------------------------------------------------------------------------------------------------

Related labels:
php
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Recommendations
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!