How do I get a file extension in PHP?

Question

This is a question you can read everywhere on the web with various answers:

$ext = end(explode(\'.\', $filename));
$ext = substr(strrchr($filename, \'.\'), 1         


        

Answer 1

Use

str_replace('.', '', strrchr($file_name, '.'))

for a quick extension retrieval (if you know for sure your file name has one).