PHP多线程类

<?php

/**
 * @title:      PHP多线程类(Thread)
 * @version:    1.0
 * @author:     phper.org.cn < web@phper.org.cn >
 * @published:  2010-11-2
 *
 * PHP多线程应用示例：
 *  require_once 'thread.class.php';
 *  $thread = new thread();
 *  $thread->addthread('action_log','a');
 *  $thread->addthread('action_log','b');
 *  $thread->addthread('action_log','c');
 *  $thread->runthread();
 *
 *  function action_log($info) {
 *      $log = 'log/' . microtime() . '.log';
 *      $txt = $info . " " . 'Set in ' . Date('h:i:s', time()) . (double)microtime() . " ";
 *      $fp = fopen($log, 'w');
 *      fwrite($fp, $txt);
 *      fclose($fp);
 *  }
 */
class thread {

	var $hooks = array();
	var $args = array();

	function thread() {
	}

	function addthread($func)
	{
		$args = array_slice(func_get_args(), 1);
		$this->hooks[] = $func;
		$this->args[] = $args;
		return true;
	}

	function runthread()
	{
		if(isset($_GET['flag']))
		{
			$flag = intval($_GET['flag']);
		}
		if($flag || $flag === 0)
		{
			call_user_func_array($this->hooks[$flag], $this->args[$flag]);
		}
		else
		{
			for($i = 0, $size = count($this->hooks); $i < $size; $i++)
			{
				$fp=fsockopen($_SERVER['HTTP_HOST'],$_SERVER['SERVER_PORT']);
				if($fp)
				{
					$out = "GET {$_SERVER['PHP_SELF']}?flag=$i HTTP/1.1 ";
					$out .= "Host: {$_SERVER['HTTP_HOST']} ";
					$out .= "Connection: Close ";
					fputs($fp,$out);
					fclose($fp);
				}
			}
		}
	}
}