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文章来源：http://sjolzy.cn/PHP-Using-Curl--socket--file-get-contents-POST-data.html

<?php     
/**     
* Socket版本      
* 使用方法：     
* $post_string = "app=socket&version=beta";     
* request_by_socket('facebook.cn','/restServer.php',$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;     
}     
     
     
/**     
* Curl版本      
* 使用方法：     
* $post_string = "app=request&version=beta";     
* request_by_curl('http://facebook.cn/restServer.php',$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,"Jimmy's CURL Example beta");     
     $data = curl_exec($ch);     
     curl_close($ch);     
     return $data;     
}     
/**     
* 其它版本     
* 使用方法：     
* $post_string = "app=request&version=beta";     
* request_by_other('http://facebook.cn/restServer.php',$post_string);     
*/     
function request_by_other($remote_server,$post_string){     
     $context = array(     
             'http'=>array(     
                 'method'=>'POST',     
                 'header'=>'Content-type: application/x-www-form-urlencoded'."".     
                             'User-Agent : Jimmy's POST Example beta'."".     
                             'Content-length: '.strlen($post_string)+8,     
                 'content'=>'mypost='.$post_string)     
             );     
     $stream_context = stream_context_create($context);     
     $data = file_get_contents($remote_server,FALSE,$stream_context);     
     return $data;     
}     
     
?>