How to modify php script execution time

3 methods: 1. Open the "php.ini" file and modify the value of the "max_execution_time" item. 2. Use "ini_set("max_execution_time", "new value");" to modify. 3. Use "set_time_limit(new value);" to modify.

The operating environment of this tutorial: Windows 7 system, PHP version 7.1, DELL G3 computer

The php script execution time involves whether the script runs out of time. The maximum execution time of php script is 30 seconds.

If the script needs to run for a long time, such as sending a large number of emails, or analyzing a large amount of data, to prevent the server from forcibly stopping the executing program after 30 seconds, in this case, the maximum value of the PHP script must be changed. execution time.

So how to modify the php script execution time?

The following are 3 methods:

1. Set in php.ini

In the php.ini configuration file , the script execution time is specified by the max_execution_time variable. Therefore, you only need to set the value of the variable

max_execution_time = 新数值;

2. Set it through PHP's ini_set function

ini_set is used to set the value of php.ini. When the function is executed It takes effect when the script ends. After the script ends, the setting becomes invalid. You can modify the configuration without opening the php.ini file, which is very convenient for virtual spaces.

You only need to use the ini_set function to modify the value of the max_execution_time variable

ini_set("max_execution_time", "新数值");

3. Set through the set_time_limit function

The set_time_limit function is used to limit pages

set_time_limit(新数值);

Explanation of execution time:

Among the above 3 methods, if the value is set to 0, there is no limit, and the script will continue to execute until the end of execution .

Therefore, for scripts that need to be executed for a long time, generally add the following code at the beginning of the PHP code

set_time_limit(0);

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