Refine array with Explode or with other function

[Enragedash]

Purpose of the script is to list down all the files and folder in the directory.
But I want extract images files i.e .png, .gif, .jpg etc.

What should I do ?


<?php
$adr=$_SERVER['DOCUMENT_ROOT'];

$files=scandir($adr);

$newlist=array($files);
$trims=array_slice($files,2);
asort($trims);

foreach($trims as $trim)
{

echo "<span class='link'> <a href='$trim' target='_relative'>$trim<br /></a>";

}

?>

[johnj]

use regular expressions or substring functions to check if there are image files.

[Enragedash]

use regular expressions or substring functions to check if there are image files.

how come substring can help ?
I guess with the substring function I can only set or end up string at desired value.

like
echo substr("Hello world!",6);
output
world!

[Enragedash]

Thankx johnj. Anyways my problem is solved.

Substring=substr() wasn't the solution
I did it with stringposition=strpos()