PHP语言实现脚本异步执行_PHP教程

PHP语言实现脚本异步执行

php语言得用fsockopen()函数,实现脚本异步运行,代码如下

//异步请求函数(用debug参数若为true则为用为调试,开启调试可以看到异步的执行情况,但是失去异步的效果)

main.php

 

<!--?php
function request_by_fsockopen($url,$post_data=array(),$debug=false){
    $url_array = parse_url($url);
    $hostname = $url_array[&#39;host&#39;];
    $port = isset($url_array[&#39;port&#39;])? $url_array[&#39;port&#39;] : 80;
    @$requestPath = $url_array[&#39;path&#39;] ."?". $url_array[&#39;query&#39;];
    $fp = fsockopen($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);//必须做url转码以防模拟post提交的数据中有&符而导致post参数键值对紊乱
        }
        $_post = implode(&#39;&&#39;, $_post);
        $header .= "Content-Type: application/x-www-form-urlencoded\r\n";//POST数据
        $header .= "Content-Length: ". strlen($_post) ."\r\n";//POST数据的长度
        $header.="Connection: Close\r\n\r\n";//长连接关闭
        $header .= $_post; //传递POST数据
    }else{
        $header.="Connection: Close\r\n\r\n";//长连接关闭
    }
    fwrite($fp, $header);
    //-----------------调试代码区间-----------------
    //注如果开启下面的注释,异步将不生效可是方便调试
    if($debug){
    $html = &#39;&#39;;
    while (!feof($fp)) {
    $html.=fgets($fp);
    }
    echo $html;
    }
    //-----------------调试代码区间-----------------
    fclose($fp);
}

$data=array(&#39;name&#39;=>&#39;guoyu&#39;,&#39;pwd&#39;=>&#39;123456&#39;);
$url=&#39;http://localhost/test/other.php&#39;;
request_by_fsockopen($url,$data,true);//

other.php

<!--?php
header("content-type:text/html;charset=utf-8");
//error_reporting(0);
//ini_set(&#39;html_errors&#39;,false);
//ini_set(&#39;display_errors&#39;,false);
$name = isset($_POST[&#39;name&#39;])?$_POST[&#39;name&#39;]:&#39;&#39;;
$pwd = isset($_POST[&#39;pwd&#39;])?$_POST[&#39;pwd&#39;]:&#39;&#39;;
echo $name.$pwd;
echo &#39;success ok&#39;;
die;
?-->

 

使用实例:
[运行的main.php主脚本文件]
$data=array('name'=>'guoyu','pwd'=>'123456');
$url='http://localhost/test/other.php';
request_by_fsockopen($url,$data,true);//把应用B的用户表异步-同步数据

[导步执行文件other.php]
在other.php中便可以用$_POST接收main.php提交过来的参数，从而进行下一步操作

 

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