Summary and performance analysis of turning off error prompts in php_PHP tutorial

This article introduces some PHP error prompt methods in PHP development. Friends in need can refer to this article.

1. Close the notice error prompt

1. Change error_reporting in the php.ini file

changed to:

The code is as follows

代码如下	复制代码
error_reporting=E_ALL & ~E_NOTICE

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error_reporting=E_ALL & ~E_NOTICE

代码如下	复制代码
error_reporting(E_ALL^E_NOTICE);

2. If you cannot operate the php.ini file, you can use the following method

Add the following code to the page where you want to disable notice error prompts:

The code is as follows

Copy code

代码如下	复制代码
找到display_errors = On 修改为 display_errors = off

error_reporting(E_ALL^E_NOTICE);

This way there will be no prompts when errors occur

代码如下	复制代码
//禁用错误报告 error_reporting(0); //报告运行时错误 error_reporting(E_ERROR | E_WARNING | E_PARSE); //报告所有错误 error_reporting(E_ALL); ?>

2. Close all error prompts

php.ini

Open the php.ini file in the PHP installation directory

The code is as follows

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Find display_errors = On and change it to display_errors = off

Note: If you have copied the PHP.ini file to the windows directory, you must also change display_errors = On in c:windows/php.ini to display_errors = off

php program is opened

The code is as follows	Copy code
//Disable error reporting error_reporting(0); //Report runtime errors error_reporting(E_ERROR | E_WARNING | E_PARSE); //Report all errors error_reporting(E_ALL); ?>

Turning off error prompts in terms of performance will increase the server performance load a lot

Test 1: Test the performance of uninitialized variables and initialized variables in 10000000 loops with error display turned off The loop code with initialized variables is as follows: The loop code with uninitialized variables is as follows:

Test results:

Initialization: 5.28 seconds average Uninitialized: 17.2 seconds average Performance gap: 3.25 times Average timetable: We can see that turning off PHP error output will not turn off the PHP kernel's error processing. If there are a large number of Notice-level errors in the code, it will still reduce the performance of the PHP program. http://www.bkjia.com/PHPjc/631596.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/631596.htmlTechArticleThis article introduces some PHP closing error prompt methods in PHP development. Friends in need can refer to this article. . 1. Close the notice error prompt 1. Change error_re... in the php.ini file