File Extension Finder in PHP

getFileExt

<?php

//Elegant Way to Find File Extension in PHP

// WAY-1:

$file_name = "ding.txt";
echo substr(strrchr($file_name,'.'),1).'<br/>'; //Shows ext. eg; txt
echo substr(strrchr($file_name,'.'),0).'<br/>'; //Shows ext followed by a dot (.); eg; .txt


//WAY-2:

$file_name = pathinfo('/www/htdocs/inc/lib.inc.php');

echo $file_name['dirname'].'<br/>';
echo $file_name['basename'].'<br/>';
echo $file_name['extension'].'<br/>';
echo $file_name['filename'].'<br/>';