array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'function.posix-getpid.php', 1 => 'posix_getpid', 2 => '返回当前进程 id', ), 'up' => array ( 0 => 'ref.posix.php', 1 => 'POSIX 函数', ), 'prev' => array ( 0 => 'function.posix-getpgrp.php', 1 => 'posix_getpgrp', ), 'next' => array ( 0 => 'function.posix-getppid.php', 1 => 'posix_getppid', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'zh', 'path' => 'reference/posix/functions/posix-getpid.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

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

参数

此函数没有参数。

返回值

返回进程 id 号，是整型（int）。

示例

示例 #1 posix_getpid() 的使用例子

<?php
echo posix_getpid(); //8805
?>

参见