时间:2021-07-01 10:21:17 帮助过:3人阅读
但有时候我们需要异步操作,多个线程同时运行,
下面我们来介绍php是如何实现多线程操作的
代码如下:
仅供参考<?php /** * @title: PHP多线程类(Thread) * @version: 1.0 * @author: php.cn < web@php.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 . "\r\n\r\n" . 'Set in ' . Date('h:i:s', time()) . (double)microtime() . "\r\n"; * $fp = fopen($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\r\n"; $out .= "Host: {$_SERVER['HTTP_HOST']}\r\n"; $out .= "Connection: Close\r\n\r\n"; fputs($fp,$out); fclose($fp); } } } } } $thread = new thread(); $thread->addthread('func1','info1'); $thread->addthread('func2','info2'); $thread->addthread('func3','info3'); $thread->runthread(); //说明: //addthread是添加线程函数,第一个参数是函数名,之后的参数(可选)为传递给指定函数的参数。 //runthread是执行线程的函数。本文由PHP中文网提供,介绍了如何使用PHP模拟出多线程功能。
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