PHP多线程类及用法实例，php多线程实例_PHP教程

/**
* @title: PHP多线程类(Thread)
* @version: 1.0
*
* 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 . "rnrn" . 'Set in ' . Date('h:i:s', time()) . (double)microtime() . "rn";
* $fp = fopen($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 {
$fp=fsockopen($_SERVER['HTTP_HOST'],$_SERVER['SERVER_PORT']);
if($fp)
{
$out = "GET {$_SERVER['PHP_SELF']}?flag=$i HTTP/1.1rn";
$out .= "Host: {$_SERVER['HTTP_HOST']}rn";
$out .= "Connection: Closernrn";
fputs($fp,$out);
fclose($fp);
}
}
}
}
}

$thread = new thread();
$thread->addthread('func1','info1');
$thread->addthread('func2','info2');
$thread->addthread('func3','info3');
$thread->runthread();

class curl_multi{ 
    private $url_list=array(); 
    private $curl_setopt=array( 
        'CURLOPT_RETURNTRANSFER' => 1,//结果返回给变量 
        'CURLOPT_HEADER' => 0,//是否需要返回HTTP头 
        'CURLOPT_NOBODY' => 0,//是否需要返回的内容 
        'CURLOPT_FOLLOWLOCATION' => 0,//自动跟踪 
        'CURLOPT_TIMEOUT' => 6//超时时间(s) 
    ); 
    function __construct($seconds=30){ 
        set_time_limit($seconds); 
    } 
    /* 
     * 设置网址 
     * @list 数组 
     */ 
    public function setUrlList($list=array()){ 
        $this->url_list=$list; 
    } 
    /* 
     * 设置参数 
     * @cutPot array 
     */ 
    public function setOpt($cutPot){ 
        $this->curl_setopt=$cutPot+$this->curl_setopt; 
    } 
    /* 
     * 执行 
     * @return array 
     */ 
    public function execute(){ 
        $mh=curl_multi_init(); 
        foreach($this->url_list as $i=>$url){ 
            $conn[$i]=curl_init($url); 
            foreach($this->curl_setopt as $key => $val){ 
                curl_setopt($conn[$i],preg_replace('/(CURLOPT_w{1,})/ie','$0',$key),$val); 
            } 
            curl_multi_add_handle($mh,$conn[$i]); 
        } 
        $active=false; 
        do{ 
            $mrc=curl_multi_exec($mh,$active); 
        }while($mrc == CURLM_CALL_MULTI_PERFORM); 
 
        while($active and $mrc == CURLM_OK){ 
            if(curl_multi_select($mh) != -1){ 
                do{ 
                    $mrc=curl_multi_exec($mh,$active); 
                }while($mrc == CURLM_CALL_MULTI_PERFORM); 
            } 
        } 
        $res=array(); 
        foreach($this->url_list as $i => $url){ 
            $res[$i]=curl_multi_getcontent($conn[$i]); 
            curl_close($conn[$i]); 
            curl_multi_remove_handle($mh,$conn[$i]);//释放资源   
        } 
        curl_multi_close($mh); 
        return $res; 
    } 
}

$curl_mul=new curl_multi(); 
$curl_mul->setUrlList(array('http://www.bkjia.com/img/logo.jpg','http://www.bkjia.com/img/logo.jpg','http://www.bkjia.com/img/logo.jpg')); 
$a=$curl_mul->execute(); 
$i=1; 
foreach($a as $v){ 
        $filename=$i.'.gif'; 
        $fp2=@fopen($filename,'a'); 
        fwrite($fp2,$v); 
        fclose($fp2); 
        $i++; 
}