php接收二进制文件转换成图片

php接收二进制文件转换成图片，php://input
$GLOBALS['HTTP_RAW_POST_DATA']

as3 代码

var bitmapData:BitmapData = new BitmapData(drawWidth,
drawHeight);//的到BitmapData

var myMatrix:Matrix = new Matrix(1, 0, 0, 1, drawWidth/ 2, drawHeight/ 2);//改变中心点

bitmapData.draw(Con_mc, myMatrix);//绘制位图数据

var encoder:JPGEncoder = new JPGEncoder(80);

var bytes:ByteArray = encoder.encode(bitmapData);//得到二进制位图数据

var request = new URLRequest("detail.php");

request.data = bytes;

request.method = URLRequestMethod.POST;

request.contentType = "application/octet-stream";

var loader:URLLoader = new URLLoader();

loader.addEventListener(Event.COMPLETE, completeHandler);

loader.addEventListener(IOErrorEvent.IO_ERROR, errorHandler);

loader.load(request);//发送请求

//flash得到 php返回的数据代码

private function completeHandler(Evt:Event):void

{

var callBack:String = Evt.currentTarget.data;

}

detail.php代码

<?php
$filename="teststream.jpg";//要生成的图片名字
if
(!empty($GLOBALS["HTTP_RAW_POST_DATA"]))
{
  $jpg =
$GLOBALS["HTTP_RAW_POST_DATA"];//得到post过来的二进制原始数据
  $file =
fopen("cache/pic/".$filename,"w");//打开文件准备写入
  fwrite($file,$jpg);//写入
  fclose($file);//关闭
}
?>

$data = $GLOBALS['HTTP_RAW_POST_DATA'];

if(!empty($data)){

    $now = date("YmdHis"); //给图片产生 名称

    $path = "admin/uploads/"; //定义上传路径 他是相对于 detail.php 的文件路径

    if(!file_exists($path.$now.".jpg")){        

      $fo = fopen($path.$now.".jpg","w");

        if(fwrite($fo,$data) === false){                

            $flag = "0";        

        }else{               

            $flag = $now.".jpg";

        }

         echo $flag;exit;//将文件名称返回给flash

    }