How to implement asynchronous execution of scripts in PHP

This article mainly introduces the method of PHP programming to implement asynchronous execution of scripts, and analyzes the asynchronous calling and execution skills of scripts implemented by PHP using fsockopen() in the form of examples. Friends in need can refer to it

The details are as follows:

php language must use the fsockopen() function to implement asynchronous running of the script. The code is as follows

Asynchronous request function (if the debug parameter is true, use For debugging, you can see the asynchronous execution by turning on debugging, but the asynchronous effect will be lost)

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;
?>

Usage example:

[Running main.php main script file]

$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

[Guide execution file other.php]

In other.php, you can use $_POST to receive the parameters submitted by main.php, so as to proceed to the next step

Related recommendations:

How to implement Script asynchronousExecution method specific analysis

PHP language ImplementationScript asynchronousExecution

PHP language implementationScript asynchronousExecution_PHP tutorial

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