PHP envoie et reçoit des fichiers de flux

<?php  
/** php 发送流文件 
* @param  String  $url  接收的路径 
* @param  String  $file 要发送的文件 
* @return boolean 
*/  
function sendStreamFile($url, $file){  
  
    if(file_exists($file)){  
  
        $opts = array(  
            &#39;http&#39; => array(  
                &#39;method&#39; => &#39;POST&#39;,  
                &#39;header&#39; => &#39;content-type:application/x-www-form-urlencoded&#39;,  
                &#39;content&#39; => file_get_contents($file)  
            )  
        );  
  
        $context = stream_context_create($opts);  
        $response = file_get_contents($url, false, $context);  
        $ret = json_decode($response, true);  
        return $ret[&#39;success&#39;];  
  
    }else{  
        return false;  
    }  
  
}  
  
$ret = sendStreamFile(&#39;http://localhost/fdipzone/receiveStreamFile.php&#39;, &#39;send.txt&#39;);  
var_dump($ret);  
?>

<?php  
/** php 接收流文件 
* @param  String  $file 接收后保存的文件名 
* @return boolean 
*/  
function receiveStreamFile($receiveFile){  
  
    $streamData = isset($GLOBALS[&#39;HTTP_RAW_POST_DATA&#39;])? $GLOBALS[&#39;HTTP_RAW_POST_DATA&#39;] : &#39;&#39;;  
  
    if(empty($streamData)){  
        $streamData = file_get_contents(&#39;php://input&#39;);  
    }  
  
    if($streamData!=&#39;&#39;){  
        $ret = file_put_contents($receiveFile, $streamData, true);  
    }else{  
        $ret = false;  
    }  
  
    return $ret;  
  
}  
  
$receiveFile = &#39;receive.txt&#39;;  
$ret = receiveStreamFile($receiveFile);  
echo json_encode(array(&#39;success&#39;=>(bool)$ret));  
?>