Script Help Please

Discussion in 'Programming' started by geekazoid, Jun 29, 2006.

0
  1. #1
    On a differant post here i was given this code to make a random image desplayed on my page each day, not each page load. The problem is i've tried using it and i just cant seem to get it to work, I dont know if the script is dodgey or im justing puting it in the wrong place. Heres the script 

    <?phpfunction getPotD($dir) {    $array = split(' ', shell_exec('ls -A '.$dir));    return $array[(date('dd')+0) % count($array)];}?>
    PHP:
    and also 

    <?php print '<img src="'.getPotD('certaindir/').'" alt="Picture of the Day" />'; ?>
    PHP:
    Could someone tell me please where in my page i place this script and which bits i need to edit, I believe its just the certaindir bit that i edit is this correct ?
     
    geekazoid, Jun 29, 2006 IP
  2. clancey

    clancey Peon

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    #2
    I would approach it a little differently. You should not be using a shell_exec to do this.

    
Include this is the file the user is fetching:

<?php
include_once( '/path/to/my_functions.php' );

print '<img src="'.getTodaysPicture('/path/to/pictures/').
   '" alt="Picture of the Day" />';
?>

Save the following into a php function file such as:
/home/MY_HOME/php_functions/my_functions.php

<?php
function getTodaysPicture($dir)
{
$dh  = opendir($dir);
while (false !== ($filename = readdir($dh)))
   {
   if( !is_dir($dir . $filename) &&
       preg_match( "/\.(gif|png|jpeg)/", $filename) )
	{    $files[] = $filename; }
   }

return $files[(date('dd')+2) % count($files)];
}
?>
    Code (markup):
     
    clancey, Jun 30, 2006 IP