节 PHP 随机显示头像 <?readfile(rand(0,5).'.jpg');?> 2. <?php $url='pic'; //图片地址,用相对路径 $files=array(); if ($handle=opendir("$url")) { while(false !== ($file = readdir($handle))) { if ($file != "." && $file != "..") { if(substr($file,-3)=='gif' substr($file,-3)=='jpg') $files[count($files)] = $file; } } } closedir($handle); $random=rand(0,count($files)-1); if(substr($files[$random],-3)=='gif') header("Content-type: image/gif"); elseif(substr($files[$random],-3)=='jpg') header("Content-type: image/jpeg"); readfile("$url/$files[$random]"); ?> phpfans.net收集整理 |