How do I get a file extension in PHP

Question

This is my code:

$ext = end(explode('.', $filename));
$ext = substr(strrchr($filename, '.'), 1);
$ext = substr($filename, strrpos($filename, '.') + 1);
$ext = preg_replace('/^.*\.([^.]+)$/D', '$1', $filename);

$exts = split("[/\\.]", $filename);
$n    = count($exts)-1;
$ext  = $exts[$n];

How do I get a file extension in PHP?

Answer 1

Hello @kartik,

pathinfo()

$path_info = pathinfo('/foo/bar/baz.bill');

echo $path_info['extension']; // "bill"

Hope it helps!!

Thank YOU!!