PHP語言實現腳本異步執行

php語言得用fsockopen()函數,實現腳本異步運行,代碼如下

//異步請求函數(用debug參數若為true則為用為調試,開啟調試可以看到異步的執行情況,但是失去異步的效果)

main.php

<?php  
function request_by_fsockopen($url,$post_data=array(),$debug=false){  
    $url_array = parse_url($url);  
    $hostname = $url_array['host'];  
    $port = isset($url_array['port'])? $url_array['port'] : 80;  
    @$requestPath = $url_array['path'] ."?". $url_array['query'];  
    $fp = fsockopen($hostname, $port, $errno, $errstr, 10);  
    if (!$fp) {  
        echo "$errstr ($errno)";  
        return false;  
    }  
    $method = "GET";  
    if(!empty($post_data)){  
        $method = "POST";  
    }  
    $header = "$method $requestPath HTTP/1.1\r\n";  
    $header.="Host: $hostname\r\n";  
    if(!empty($post_data)){  
        $_post = strval(NULL);  
        foreach($post_data as $k => $v){  
        $_post[]= $k."=".urlencode($v);//必須做url轉碼以防模擬post提交的數據中有&符而導致post參數鍵值對紊亂  
        }  
        $_post = implode('&', $_post);  
        $header .= "Content-Type: application/x-www-form-urlencoded\r\n";//POST數據  
        $header .= "Content-Length: ". strlen($_post) ."\r\n";//POST數據的長度  
        $header.="Connection: Close\r\n\r\n";//長連接關閉  
        $header .= $_post; //傳遞POST數據  
    }else{  
        $header.="Connection: Close\r\n\r\n";//長連接關閉  
    }  
    fwrite($fp, $header);  
    //-----------------調試代碼區間-----------------  
    //注如果開啟下面的注釋,異步將不生效可是方便調試  
    if($debug){  
    $html = '';  
    while (!feof($fp)) {  
    $html.=fgets($fp);  
    }  
    echo $html;  
    }  
    //-----------------調試代碼區間-----------------  
    fclose($fp);  
}  

$data=array('name'=>'guoyu','pwd'=>'123456');  
$url='http://localhost/test/other.php';  
request_by_fsockopen($url,$data,true);// 

other.php

    <?php  
    header("content-type:text/html;charset=utf-8");  
    //error_reporting(0);  
    //ini_set('html_errors',false);  
    //ini_set('display_errors',false);  
    $name = isset($_POST['name'])?$_POST['name']:'';  
    $pwd = isset($_POST['pwd'])?$_POST['pwd']:'';  
    echo $name.$pwd;  
    echo 'success ok';  
    die;  
    ?>