php下载文件函数的简单应用实例

10. set_time_limit(24*60*60);
11. if (!isset($_POST['submit'])) die ();
12. $destination_folder = './down/'; // 文件夹保存下载文件。必须以斜杠结尾
13. $url = $_POST['url'];
14. $newfname = $destination_folder.basename($url);
15. $file = fopen($url, "rb");
16. if ($file) {
17. $newf = fopen($newfname, "wb");
18. if ($newf) while (!feof($file)) {
19. fwrite($newf, fread($file, 1024*8), 1024*8);
20. }
21. }
22. if ($file) {
23. fclose($file);
24. }
25. if ($newf) {
26. fclose($newf);
27. }
28. ?>

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