PHP - set_time_limit

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Metóda - set_time_limit

(PHP 4, PHP 5, PHP 7)

The set_time_limit() function sets how long the script can run. It is related only to the current script - the function doesn't change the global setting. The default value for the execution time of the script is 30 seconds if max_execution_time hasn't been changed in php.ini.

The function sets the execution time from the monent it's been called. If the script has run for example for 28 seconds, the max_execution_time setting hasn't been changed and the function set_time_limit() has been called with a parameter 15, the script can run for more 15 seconds. It's 43 seconds total.

The function doesn't work in safe mode.

If the operating system is not Windows, the time doesn't include system calls made using the system() function, database queries or stream operations etc.

Procedurálne

• function set_time_limit (int $seconds) : bool

Parametre

Názov	Dátový typ	Predvolená hodnota	Popis
$seconds	int		The maximum number of seconds for the execution time of the script. If set to zero, no time limit is set.

Mávratovej hodnoty

Vracia: bool

Returns true on success, false on failure.

The function can return null if the parameter isn't of the integer type. It also emits a warning in this situation.

Príklady

Test of return values:

<?php
var_dump(set_time_limit(30));       // True
var_dump(set_time_limit(0));        // True
var_dump(set_time_limit(15));       // True
var_dump(set_time_limit('Fail'));   // Emits a warning and returns NULL

In real use:

<?php
set_time_limit(60);
// Parsing tons of data
// ...
if (!set_time_limit(60)) {  // Again setting the execution time for the script - it resets the previous "timer"
    // If it fails, it can save the data here
    // ...
    exit;
}
// Parsing next tons of data ...
// ...