Php/docs/function.pcntl-setpriority
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pcntl_setpriority
(PHP 5, PHP 7)
pcntl_setpriority — Change the priority of any process
Description
pcntl_setpriority
( int $priority
[, int $pid
= getmypid()
[, int $process_identifier
= PRIO_PROCESS
]] ) : bool
pcntl_setpriority() sets the priority of
pid
.
Parameters
priority
priority
is generally a value in the range-20
to20
. The default priority is0
while 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.pid
- If not specified, the pid of the current process is used.
process_identifier
- One of
PRIO_PGRP
,PRIO_USER
orPRIO_PROCESS
.
Return Values
Returns TRUE
on success or FALSE
on failure.