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pcntl_getpriority

Get the priority of any process (PHP 5)
int pcntl_getpriority ( [int pid [, int process_identifier]] )

pcntl_getpriority() gets the priority of pid. Because priority levels can differ between system types and kernel versions, please see your system's getpriority(2) man page for specific details.

Parameters

pid

If not specified, the pid of the current process is used.

process_identifier

One of PRIO_PGRP, PRIO_USER or PRIO_PROCESS.

Return Values

pcntl_getpriority() returns the priority of the process or FALSE on error. A lower numerical value causes more favorable scheduling.

Warning:

This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE, such as 0 or "". Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.