proc_nice
(PHP 5, PHP 7)
proc_nice — Change the priority of the current process
Description
$increment
) : bool
proc_nice() changes the priority of the current
process by the amount specified in increment. A
positive increment will lower the priority of the
current process, whereas a negative increment
will raise the priority.
proc_nice() is not related to proc_open() and its associated functions in any way.
Parameters
-
increment -
The new priority value, the value of this may differ on platforms.
On Unix, a low value, such as -20 means high priority wheras a positive value have a lower priority.
For Windows the
incrementparameter have the following meanings:Priority class Possible values High priority increment< -9Above normal priority increment< -4Normal priority increment< 5 &increment> -5Below normal priority increment> 5Idle priority increment> 9
Return Values
Returns TRUE on success or FALSE on failure.
If an error occurs, like the user lacks permission to change the priority,
an error of level E_WARNING is also generated.
Examples
Example #1 Using proc_nice() to set the process priority to high
<?php
// Highest priority
proc_nice(-20);
?>
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
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References
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