posix_getpid

(PHP 4, PHP 5, PHP 7, PHP 8)

posix_getpid返回当前进程 id

说明

posix_getpid ( ) : int

Return the process identifier of the current process. 返回当前进程的 id

返回值

返回进程 id 号,是整型(integer)。

范例

Example #1 posix_getpid() 的使用例子

<?php
echo posix_getpid(); //8805
?>

参见

  • posix_kill() - Send a signal to a process
  • POSIX man page GETPID(2)

User Contributed Notes

victor at gmail dot com 06-Aug-2019 10:22
You can use this code in windows or if you system has no posix support:

<?php
if (!function_exists('posix_getpid')) {
    function
posix_getpid() {
        return
getmypid();
    }
}
Yzmir Ramirez 14-Jul-2011 03:42
You can also try using getmypid() instead.
zapolski at gmail dot com 14-Sep-2010 07:13
In order to use posix_getpid on Fedeora 11 and up you have to install php-process

# yum install php-process
andy at haveland dot com 28-Feb-2010 12:09
Since upgrading fedora 10 to 12, I discovered that posix_getpid() disappeared and not compiled in by default, as it specifies here.

It turns out that it had been moved into package php-process.

Just do "yum install php-process", and all should be sweet again.

Hope this saves someone half an hour of research.