php下载文件 图片不能打开
<br />
function fileDown($file_name){<br />
$file_name = iconv("utf-8","gb2312",$file_name);<br />
$file_path = "E:/php/down/".$file_name;<br />
if(!file_exists($file_path)){<br />
echo "文件不存在";<br />
return;<br />
}<br />
$fp = fopen($file_path,"r");<br />
$file_size = filesize($file_path);<br />
Header("Content-type: application/octet-stream");<br />
Header("Accept-Ranges: bytes");<br />
Header("Accept-Length: $file_size");<br />
Header("Content-Disposition: attachment; filename=".$file_name);<br />
$buffer = 1024;<br />
$file_count = 0;<br />
while(!feof($fp) && ($file_size - $file_count>0)){<br />
$file_data = fread($fp,$buffer);<br />
$file_count += $buffer;<br />
echo $file_data;<br />
}<br />
fclose($fp);<br />
}<br />
$file_name="sai.png";<br />
fileDown($file_name);<br />
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