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Posted By

bjarniolsen on 10/07/10

Tagged

php

Versions (?)

10/07/10 04:41am

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2 people have marked this snippet as a favorite

bjarniolsen
jplr

 / Published in: PHP

 

<?php
Header("Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
Header("Expires: Thu, 19 Nov 1981 08:52:00 GMT");
Header("Pragma: no-cache");
Header("Content-Type: image/gif");
 
$dir = "img/backgrounds";
//$imglist = "";
srand((double)microtime()*1000000);
$i = 0;
if(is_dir($dir)){
    if($dh = opendir($dir)){ 
        while(($file = readdir($dh)) !== false){
            if($file != '..' && $file != '.'){
                $image[$i] = $file;
                $i++;
            }
        }
        closedir($dh);
    }
}
$n = rand(0,(count($image)-1));
 
if(!readfile($dir."/".$image[$n])) // Read the image 
readfile($dir."error/error.gif"); // If the script can't find the directory, display this image
?>

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Posted By: Grandmaster on October 7, 2010

my solution, think it's better and has extension check

$dir = 'i'; $imgext = array('jpg', 'jpeg', 'gif', 'png'); $images = array(); if($handle = opendir($dir)) { while (false !== ($file = readdir($handle))) { $info = pathinfo($dir.'/'.$file); if(inarray($info['extension'], $img_ext)) {
$images[] = $file; } }

closedir($handle);

}

$random = array_rand($images); echo $images[$random];

Posted By: Grandmaster on October 7, 2010

my solution, think it's better and has extension check

$dir = 'i'; $imgext = array('jpg', 'jpeg', 'gif', 'png'); $images = array(); if($handle = opendir($dir)) { while (false !== ($file = readdir($handle))) { $info = pathinfo($dir.'/'.$file); if(inarray($info['extension'], $img_ext)) {
$images[] = $file; } }

closedir($handle);

}

$random = array_rand($images); echo $images[$random];