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

There is also SplFileInfo:

$file = new SplFileInfo($path);
$ext  = $file->getExtension();

Often you can write better code if you pass such an object around instead of a string. Your code is more speaking then. Since PHP 5.4 this is a one-liner:

$ext  = (new SplFileInfo($path))->getExtension();