php文件下载

<? $file_name="test_download.rar"; $file_dir = $_SERVER['DOCUMENT_ROOT']."/test/"; if(!file_exists($file_dir.$file_name)){ echo "文件找不到"; exit; }else{ $file = fopen($file_dir . $file_name,"r"); Header("Content-type: application/octet-stream"); Header("Accept-Ranges: bytes"); Header("Accept-Length: ".filesize($file_dir . $file_name)); Header("Content-Disposition: attachment; filename=" . $file_name); echo fread($file,filesize($file_dir . $file_name)); fclose($file); exit; }

//路径是http或者ftp网址的话

$file_name="test_download.rar"; $file_dir="http://127.0.0.1/test/"; $file = @ fopen($file_dir . $file_name,"r"); if (!$file){ echo "文件找不到"; exit; }else{ Header("Content-type: application/octet-stream"); Header("Content-Disposition: attachment; filename=" . $file_name); while (!feof ($file)){ echo fread($file,5000); } fclose ($file); exit; } ?>