resizer gives an error

I've had resizer working, suddenly it gives this error...

Fatal error: Call to undefined function: scandir() in D:\Domains\mccarthy-design.com\wwwroot\beaverswood\webassist\caching\CachedResize_Image.php on line 262

any ideas?

What version of PHP is your host running? It needs to be PHP 5 or greater.

Originally Said By: Jason Byrnes

  What version of PHP is your host running? It needs to be PHP 5 or greater.  

as far as I can see its PHP 5

it was working yesterday

I've changed the image resize 'type' from "proportioned to box" to "crop from centre" and it now works?

changing it back to "proportioned to box" makes the page fail

the scandir function is defined by php 5:
function.scandir.php


create a new blank php file and add the following code to it:
<?php phpinfo(); ?>

this will tell you about your php installation if it is not php 5, you will need to have the host update your php version.

if it running php 5 and you are getting this message, you should contact the host to determine why the scandir function has been disabled.