A simple example of randomly displaying pictures in php_PHP tutorial

/**
* Function: Randomly display pictures
* Filename : img.php
* Usage:
*                                                                                                                            folder=images2/>
* */
if($_GET['folder']){
$folder=$_GET['folder'];
}else{
$folder='/images/';
}
//The location to store image files
$path = $_SERVER['DOCUMENT_ROOT']."/".$folder;
$files=array();
if ($handle =opendir("$path")) {
while(false !== ($file = readdir($handle))) {
if ($file != "." && $file != ". .") {
if(substr($file,-3)=='gif' || substr($file,-3)=='jpg') $files[count($files)] = $file ;
                                                                                                                                                        ($files[$random],-3)=='gif') header("Content-type: image/gif");
elseif(substr($files[$random],-3)==' jpg') header("Content-type: image/jpeg");
readfile("$path/$files[$random]");
?>






http://www.bkjia.com/PHPjc/825250.html