php发送post请求的三种方法

/**
 * 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://localhost' , $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://localhost/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 ;
}
?>

 

下面是其他网友的方法：

class Request{
  public static function post( $url , $post_data = '' , $timeout = 5){ //curl
    $ch = curl_init();
    curl_setopt ( $ch , CURLOPT_URL, $url );
    curl_setopt ( $ch , CURLOPT_POST, 1);
    if ( $post_data != '' ){
      curl_setopt( $ch , CURLOPT_POSTFIELDS, $post_data );
    }
    curl_setopt ( $ch , CURLOPT_RETURNTRANSFER, 1);
    curl_setopt ( $ch , CURLOPT_CONNECTTIMEOUT, $timeout );
    curl_setopt( $ch , CURLOPT_HEADER, false);
    $file_contents = curl_exec( $ch );
    curl_close( $ch );
    return $file_contents ;
  }
  public static function post2( $url , $data ){ //file_get_content

    $postdata = http_build_query(
      $data
    );

    $opts = array ( 'http' =>
           array (
             'method' => 'POST' ,
             'header' => 'Content-type: application/x-www-form-urlencoded' ,
             'content' => $postdata
           )
    );

    $context = stream_context_create( $opts );
    $result = file_get_contents ( $url , false, $context );
    return $result ;
  }
  public static function post3( $host , $path , $query , $others = '' ){ //fsocket
    $post = "POST $path HTTP/1.1\r\nHost: $host\r\n" ;
    $post .= "Content-type: application/x-www-form-" ;
    $post .= "urlencoded\r\n${others}" ;
    $post .= "User-Agent: Mozilla 4.0\r\nContent-length: " ;
    $post .= strlen ( $query ). "\r\nConnection: close\r\n\r\n$query" ;
    $h = fsockopen ( $host ,80);
    fwrite( $h , $post );
    for ( $a =0, $r = '' ;! $a ;){
        $b = fread ( $h ,8192);
        $r .= $b ;
        $a =(( $b == '' )?1:0);
      }
    fclose( $h );
    return $r ;
  }
}

转载于:https://www.cnblogs.com/mumublog/articles/6061233.html