php图片下载详解编程语言

$name=$_GET[name]; //获取图片地址$file = fopen($dir,"r"); // 打开文件 $dir=/www/image/;$ext=strrchr($name,"."); if($ext!=".gif" $ext!=".jpg" $ext!=".png") return false; $file_path=$dir.$name; $size=filesize($file_path); $file = fopen($file_path,"r") or die("file is not exist");; // 打开文件 Header("Content-type: application/octet-stream"); Header("Accept-Ranges: bytes"); Header("Accept-Length: ".$size); Header("Content-Disposition: attachment; filename=" . $name); echo fread($file,$size); fclose($file); exit; }

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