PHP实现文件安全下载
程序如下:
以下为引用的内容: $file_name = "info_check.exe"; $file_dir = "/public/www/download/"; if (!file_exists($file_dir . $file_name)) { //检查文件是否存在 echo "文件找不到"; exit; } else { $file = fopen($file_dir . $file_name,"r"); //打开文件 //输入文件标签 Header("Content-type: application/octet-stream"); Header("Accept-Ranges: bytes"); Header("Accept-Length: ".filesize($file_dir . $file_name)); Header("Content-Disposition: attachment; filename=" . $file_name); //输出文件内容 echo fread($file,filesize($file_dir . $file_name)); fclose($file); exit;} 而如果文件路径是"http"或者"ftp"网址的话,则源代码会有少许改变,程序如下: $file_name = "info_check.exe"; $file_dir = "www.chinaz.com/"; $file = @ fopen($file_dir . $file_name,"r"); if (!$file) { echo "文件找不到"; } else { Header("Content-type: application/octet-stream"); Header("Content-Disposition: attachment; filename=" . $file_name); while (!feof ($file)) { echo fread($file,50000); } fclose ($file); } |
这样就可以用PHP直接输出文件了