一个php下载文件函数的简单应用实例，供初学的朋友参考。
复制代码 代码示例:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="zh-cn">
<head>
<title>php下载文件函数</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="Content-Language" content="UTF-8" />
</head>
<form method="post">
<input name="url" size="20" />
<input name="submit" type="submit" />
<!-- <input type="hidden" name="MAX_FILE_SIZE" value="2097152" />-->
</form>
<?php
set_time_limit(24*60*60);
if (!isset($_POST['submit'])) die ();
$destination_folder = './down/'; // 文件夹保存下载文件。必须以斜杠结尾
$url = $_POST['url'];
$newfname = $destination_folder.basename($url);
$file = fopen($url, "rb");
if ($file) {
$newf = fopen($newfname, "wb");
if ($newf) while (!feof($file)) {
fwrite($newf, fread($file, 1024*8), 1024*8);
}
}
if ($file) {
fclose($file);
}
if ($newf) {
fclose($newf);
}
?>
