php 发送http post请求

╰半夏微凉° 2021-09-26 05:42 521阅读 0赞

## php curl post请求中携带header参数 ##

php curl post请求中携带header参数
    
    $url = 'http://localhost/test.php';
    $ch = curl_init ();
    // curl_setopt ( $ch, CURLOPT_HTTPHEADER, $header );
    curl_setopt ( $ch, CURLOPT_HTTPHEADER, array (
    'X-ptype: like me' 
    ) );
    curl_setopt ( $ch, CURLOPT_POST, count ( $post_data ) );
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt ( $ch, CURLOPT_URL, $url );
    curl_setopt ( $ch, CURLOPT_POSTFIELDS, http_build_query ( $post_data ) );
    ob_start ();
    curl_exec ( $ch );
    $result = ob_get_contents ();
    ob_end_clean ();
    curl_close ( $ch );

curl_setopt($ch, CURLOPT_HTTPHEADER, Array("Content-Type: text/xml")); 
    //或者
    $header[0] = "Accept: text/xml,application/xml,application/xhtml+xml,"; 
    $header[0] .= "text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5"; 
    $header[] = "Cache-Control: max-age=0"; 
    $header[] = "Connection: keep-alive"; 
    $header[] = "Keep-Alive: 300"; 
    $header[] = "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7"; 
    $header[] = "Accept-Language: en-us,en;q=0.5"; 
    $header[] = "Pragma: "; // browsers keep this blank. 
    curl_setopt($curl, CURLOPT_HTTPHEADER, $header);

## php://input ##

php://input是个可以访问请求原始数据的只读流，但是对于enctype=”multipart/form-data”表单数据也是不可用的（同$HTTP\_RAW\_POST\_DATA）。

如果PHP使用php://input来处理post数据，请求报文中不需要添加Content-Type头

<?php public function request_post(){ echo file_get_contents('php://input'); } ?>

## PHP 处理Request header ##

在PHP里，想要得到所有的HTTP请求报头，可以使用getallheaders方法，不过此方法并不是在任何环境下都存在，比如说，你使用fastcgi方式运行php的话，就没有这个方法，所以说我们还需要考虑别的方法，幸运的是$\_SERVER里有我们想要的东西，它里面键名以HTTP\_开头的就是HTTP请求头：

$headers = array(); 
    foreach ($_SERVER as $key => $value) { 
        if ('HTTP_' == substr($key, 0, 5)) { 
            $headers[str_replace('_', '-', substr($key, 5))] = $value; 
            echo "$key: $value\n";
        } 
    }

## php发送post请求的三种方法,分别使用curl、file\_get\_content、fsocket来实现post提交数据 ##

/** * 发送post请求 * @param string $url 请求地址 * @param array $post_data post键值对数据 * @return string * */
     function send_post($url, $post_data) { 
         $postdata = http_build_query($post_data);  
            'http' => array(      'method' => 'POST', 
            'header' => 'Content-type:application/x-www-form-urlencoded',     
            'content' => $postdata,    
            'timeout' => 15 * 60 // 超时时间（单位:s）
             ));
           $context = stream_context_create($options); 
           return $result;
      } 
    //使用方法
    $post_data = array('password' =>'handan');
    send_post('http://www.jb51.net', $post_data);

<?php
    /** 
    * Socket版本 
    * $post_string = "app=socket&version=beta"; 
    * request_by_socket('chajia8.com', '/restServer.php', $post_string); 
    * /
    function request_by_socket($remote_server,$remote_path,$post_string,$port = 80,$timeout = 30) 
    {  
      $socket = fsockopen($remote_server, $port, $errno, $errstr, $timeout);
      if (!$socket) die("$errstr($errno)");
      fwrite($socket, "POST $remote_path HTTP/1.0");
      fwrite($socket, "HOST: $remote_server");
      fwrite($socket, "Content-length: " . （strlen($post_string) + 8） . "");
      fwrite($socket, "");
      fwrite($socket, "");
      while ($str = trim(fgets($socket, 4096))) 
      {
          $header .= $str;
      }
       $data = "";
      while (!feof($socket)) 
      {    
          $data .= fgets($socket, 4096);
      }
    return $data;
    }
    ?>