php實現圖片下載

download.php下載代碼

<?php
//獲取要下載的文件名
$filename = $_GET['filename'];
//設置頭信息
header('Content-Disposition:attachment;filename=' . basename($filename));
header('Content-Length:' . filesize($filename));
//讀取文件並寫入到輸出緩沖
readfile($filename);

Html調用

<a href="download.php?filename=./files/test1.jpg">下載圖片</a>