set_time_limit

Function name: set_time_limit()

Applicable version: PHP 4, PHP 5, PHP 7

Function description: The set_time_limit() function is used to set the maximum execution time of the current script. When the script execution time exceeds the set time limit, PHP will interrupt the script execution.

Syntax: set_time_limit ( int $seconds ) : bool

parameter:

• seconds: Set the maximum execution time of the script, in seconds. If the parameter is 0, it means that the execution time of the script is not limited.

Return value:

• Return true if the setting is successful.
• If the setting fails or the function to set the maximum execution time is disabled, false is returned.

Example 1: Set the maximum execution time of the script to 10 seconds

 set_time_limit(10);

Example 2: Disable script execution time limit

 set_time_limit(0);

Notes:

• The set_time_limit() function only affects the execution time of the current script and will not affect the execution time of other scripts or external resources contained.
• If PHP is running in safe mode, the set_time_limit() function may be disabled and the maximum execution time of the script cannot be set.
• Carefulness is required when using the set_time_limit() function. Setting too long execution time may lead to too long script execution time and affect server performance.