PHP发送POST请求的三种方式

php代码

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;
 
    }
}

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