PHP发送POST请求的三种方式

PHP发送POST请求的三种方式





class Request{





    public static function post($url, $post_data = '', $timeout = 5){





        $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){





        





        $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=''){








        $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;





    }


}