<?php
$imgdir = 'image'; // 要讀取的目錄
$dir = opendir('image');
$type = array('image/jpg','image/jpeg','image/gif','image/png'); // 允許被讀取的格式
while ($image = readdir($dir)){
if($image != '.' && $image != '..'){
$getimagesize = @getimagesize($imgdir.'/'.$image);
if(in_array($getimagesize['mime'], $type)){
$images[] = $image;
$mime[] = $getimagesize['mime'];
}
}
}
closedir($dir);
$rand = array_rand($images);
@header("pragma: no-cache");
@header("Content-type:".$mime[$rand]);
@readfile($imgdir.'/'.$images[$rand]);
?>