pcntl_setpriority
PHP 5, PHP 7, PHP 8
pcntl_setpriority - Change the priority of any process
Manual
pcntl_setpriority(
int$priority,
[int|null$process_id = null],
[int$mode = PRIO_PROCESS] ): bool
pcntl_setpriority sets the priority of process_id.
Parameters
- priority
-
priority is generally a value in the range -20 to 20. The default priority is 0 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.
- process_id
-
If null, the process id of the current process is used.
- mode
-
One of PRIO_PGRP, PRIO_USER or PRIO_PROCESS.
Return Values
Returns true on success or false on failure.
Changelog
| Version | Description |
| 8.0.0 | process_id is nullable now. |