php发送get、post请求的6种方法代码示例

本文主要展示了php发送get、post请求的6种方法的代码示例,分别为使用file_get_contents 、fopen、fsockopen、curl来发送GET和POST请求，代码如下：

方法1: 用file_get_contents 以get方式获取内容：

 <?php
     $url='http://www.jb51.net/';
     $html = file_get_contents($url);
     echo $html;
 ?>

方法2: 用fopen打开url, 以get方式获取内容：

 <?php
     $fp = fopen($url, ‘r');
     stream_get_meta_data($fp);
     while(!feof($fp)) {
         $result .= fgets($fp, 1024);
     }
     echo “url body: $result”;
     fclose($fp);
 ?>

方法3：用file_get_contents函数,以post方式获取url

 <?php
     $data = array (‘foo' => ‘bar');
     $data = http_build_query($data);

     $opts = array (
         ‘http' => array (
             ‘method' => ‘POST',
             ‘header'=> “Content-type: application/x-www-form-urlencodedrn” . “Content-Length: ” . strlen($data) . “rn”,
             ‘content' => $data
         )
     );

     $context = stream_context_create($opts);
     $html = file_get_contents(‘http://localhost/e/admin/test.html', false, $context);

     echo $html;
 ?>

方法4：用fsockopen函数打开url，以get方式获取完整的数据，包括header和body,fsockopen需要 PHP.ini 中 allow_url_fopen 选项开启

 <?php
     function get_url ($url,$cookie=false)
     {
 4         $url = parse_url($url);
         $query = $url[path].”?”.$url[query];
         echo “Query:”.$query;
         $fp = fsockopen( $url[host], $url[port]?$url[port]:80 , $errno, $errstr, 30);
         if (!$fp) {
             return false;
         } else {
             $request = “GET $query HTTP/1.1rn”;
             $request .= “Host: $url[host]rn”;
             $request .= “Connection: Closern”;
             if($cookie) $request.=”Cookie:  $cookien”;
15             $request.=”rn”;
             fwrite($fp,$request);
             while(!@feof($fp)) {
                 $result .= @fgets($fp, 1024);
             }
             fclose($fp);
             return $result;
         }
     }
     //获取url的html部分，去掉header
     function GetUrlHTML($url,$cookie=false)
     {
         $rowdata = get_url($url,$cookie);
         if($rowdata)
         {
             $body= stristr($rowdata,”rnrn”);
             $body=substr($body,4,strlen($body));
             return $body;
33         }

         return false;
     }
 ?>

方法5：用fsockopen函数打开url，以POST方式获取完整的数据，包括header和body

 <?php
     function HTTP_Post($URL,$data,$cookie, $referrer=”")
     {

         // parsing the given URL
         $URL_Info=parse_url($URL);

         // Building referrer
         if($referrer==”") // if not given use this script as referrer
             $referrer=”111″;

         // making string from $data
         foreach($data as $key=>$value)
             $values[]=”$key=”.urlencode($value);
         $data_string=implode(“&”,$values);

         // Find out which port is needed – if not given use standard (=80)
18         if(!isset($URL_Info["port"]))
             $URL_Info["port"]=80;

         // building POST-request:
         $request.=”POST “.$URL_Info["path"].” HTTP/1.1n”;
         $request.=”Host: “.$URL_Info["host"].”n”;
         $request.=”Referer: $referern”;
         $request.=”Content-type: application/x-www-form-urlencodedn”;
         $request.=”Content-length: “.strlen($data_string).”n”;
         $request.=”Connection: closen”;

         $request.=”Cookie:  $cookien”;

         $request.=”n”;
         $request.=$data_string.”n”;

         $fp = fsockopen($URL_Info["host"],$URL_Info["port"]);
         fputs($fp, $request);
         while(!feof($fp)) {
              $result .= fgets($fp, 1024);
         }
         fclose($fp);

         return $result;
     }
 ?>

方法6:使用curl库，使用curl库之前，可能需要查看一下php.ini是否已经打开了curl扩展

 <?php
     $ch = curl_init();
 3     $timeout = 5;
     curl_setopt ($ch, CURLOPT_URL, ‘http://www.jb51.net/');
     curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
     curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
     $file_contents = curl_exec($ch);
     curl_close($ch);

     echo $file_contents;
 ?>