学习路之PHP--php如何发送post请求

方法一：file_get_content版本

/**
 * 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);
  $options = array(
    '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);
  $result = file_get_contents($url, false, $context);
  return $result;
}  

//使用方法
$post_data = array(
  'username' => 'stclair2201',
  'password' => 'handan'
);
send_post('http://www.jb51.net', $post_data);

方法二：Socket版本

/**
 * Socket版本
 * 使用方法：
 * $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, "User-Agent: Socket Example");
  fwrite($socket, "HOST: $remote_server");
  fwrite($socket, "Content-type: application/x-www-form-urlencoded");
  fwrite($socket, "Content-length: " . （strlen($post_string) + 8） . "");
  fwrite($socket, "Accept:*/*");
  fwrite($socket, "");
  fwrite($socket, "mypost=$post_string");
  fwrite($socket, "");
  $header = "";
  while ($str = trim(fgets($socket, 4096))) {
    $header .= $str;
  }
  $data = "";
  while (!feof($socket)) {
    $data .= fgets($socket, 4096);
  }
  return $data;
}
?>

方法三：Curl版本

/**
 * Curl版本
 * 使用方法：
 * $post_string = "app=request&version=beta";
 * request_by_curl('http://www.jb51.net/restServer.php', $post_string);
 */
function request_by_curl($remote_server, $post_string) {
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $remote_server);
  curl_setopt($ch, CURLOPT_POSTFIELDS, 'mypost=' . $post_string);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_USERAGENT, "jb51.net's CURL Example beta");
  $data = curl_exec($ch);
  curl_close($ch); 
  return $data;
}
?>

1、【GET请求】

1 $data = array( 'name'=>'zhezhao','age'=>'23');
2 $query = http_build_query($data); 
3 $url = 'http://localhost/get.php';//这里一定要写完整的服务页面地址，否则php程序不会运行 
4 $result = file_get_contents($url.'?'.$query); 

2、【POST请求】

1 $data = array('user'=>'jiaxiaozi','passwd'=>'123456');
2 $requestBody = http_build_query($data);
3 $context = stream_context_create(['http' => ['method' => 'POST', 'header' => "Content-Type: application/x-www-form-urlencoded\r\n"."Content-Length: " . mb_strlen($requestBody), 'content' => $requestBody]]);
4 $response = file_get_contents('http://server.test.net/login', false, $context);

也可参考如下

//请求URL得到内容
    public function geturl($url){//geturl函数
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        $output = curl_exec($ch);
        curl_close($ch);
        return $output;
    }
        
     //请求URL得到内容
    /**
     * 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);
        $options = array(
        'http' => array(
        'method' => 'GET',
        '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);
        $result = file_get_contents($url, false, $context);
        return $result;
    }

    /**
     * 发送get请求
     * @param string 请求地址 $url = 'http://localhost/get.php';//这里一定要写完整的服务页面地址，否则php程序不会运行 
     * @param array $data 键值对数据 $data = array( 'name'=>'zhezhao','age'=>'23');
     * @return string
     */
    function send_get($url, $data) { 
        $query = http_build_query($data); 
        $result = file_get_contents($url.'?'.$query); 
        return $result;
    }