pcntl_setpriority
(PHP 5, PHP 7, PHP 8)
pcntl_setpriority — Change the priority of any process
Description
pcntl_setpriority(int
$priority, ?int $process_id = null, int $mode = PRIO_PROCESS): bool
pcntl_setpriority() sets the priority of
process_id.
Parameters
-
priority -
priorityis generally a value in the range-20to20. The default priority is0while a lower numerical value causes more favorable scheduling. Because priority levels can differ between system types and kernel versions, please see your system's setpriority(2) man page for specific details. -
process_id -
If
null, the process id of the current process is used. -
mode -
One of
PRIO_PGRP,PRIO_USER,PRIO_PROCESS,PRIO_DARWIN_BGorPRIO_DARWIN_THREAD.
Return Values
Returns true on success or false on failure.
Changelog
| Version | Description |
|---|---|
| 8.0.0 |
process_id is nullable now.
|
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