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HomeBackend DevelopmentPHP TutorialHow to solve PHP Fatal error: Maximum execution time of X seconds exceeded
How to solve PHP Fatal error: Maximum execution time of X seconds exceededAug 25, 2023 pm 09:00 PM
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如何解决PHP Fatal error: Maximum execution time of X seconds exceeded

How to solve PHP Fatal error: Maximum execution time of X seconds exceeded

In the process of using PHP for programming development, sometimes you will encounter a common error message :PHP Fatal error: Maximum execution time of X seconds exceeded. This error message is caused by the PHP program execution time exceeding the maximum execution time limit configured by the server. This article explains how to resolve this error and provides some code examples.

There are two main ways to solve this problem: one is to increase the maximum execution time by modifying the server configuration file; the other is to modify the script execution time limit in the code. These two methods will be introduced separately below.

Method 1: Modify the server configuration

In most cases, this error is caused by the execution time limit of PHP exceeding the default configuration of the server. To solve this problem, we can increase the maximum execution time of PHP by modifying the server's configuration file. The specific steps are as follows:

  1. Open the server configuration file. Different servers have different configuration files. Common configuration files include php.ini, httpd.conf, etc. You can determine the location of your server's configuration files by searching online.
  2. Find the "max_execution_time" configuration item. In the configuration file, you can use Ctrl F (Windows system) or Command F (Mac system) to search for "max_execution_time".
  3. Modify the value of "max_execution_time". Change the value of "max_execution_time" to a value greater than the default value, for example, change X seconds to Y seconds. Note that different servers may have slightly different settings for "max_execution_time". You can first try to increase it to a larger value, such as 300 (i.e. 5 minutes), and then adjust it according to actual needs.
  4. Save the changes and restart the server. After saving the configuration file modifications, restart the server for the modifications to take effect.

Method 2: Modify the script execution time limit in the code

In addition to increasing the maximum execution time by modifying the server configuration, we can also directly modify the script execution time limit in the code . This method is suitable for situations where you only need to increase the execution time in a specific script. Specific examples are as follows:

<?php
// 增加脚本执行时间限制为600秒(10分钟)
set_time_limit(600);

// 执行需要较长时间的脚本代码
// ...

// 恢复默认的脚本执行时间限制
set_time_limit(30);
?>

In the above sample code, we used the set_time_limit() function to set the execution time limit of the script. It should be noted that this function can only be called at the beginning of script execution and is only valid for the current script. Call the set_time_limit() function where the execution time needs to be adjusted and pass in the expected execution time to increase the execution time limit of the script.

Summary

When writing and running PHP code, it is common to encounter the "PHP Fatal error: Maximum execution time of X seconds exceeded" error. In order to solve this problem, we can increase the maximum execution time by modifying the server configuration file, or use the set_time_limit() function in the code to modify the execution time limit of the script. Choosing the appropriate method to solve this error based on actual needs can better ensure the normal execution of the program.

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