PHP Get full extension of for example index.twig.php

Question

I have a string: index.twig.php and I need to get: twig.php from it. I tried to use $ext = pathinfo($filename, PATHINFO_EXTENSION); but it only gives me php I need everything from the first dot.

Answer 1

There's a function that does exactly that:

$ext = strstr($filename, '.');

You can trim the leading dot if you don't want it:

$ext = ltrim($ext, '.');

Answer 2

You could use join(), explode() and array_slice() php functions :

i.e. :

$s = "index.twig.php";
echo join('.', array_slice(explode('.', $s), -2));

Output :

twig.php

Explanation :

expolde() will create an array by spliting the string on every ".".

array_slice() will slice the array to keep last two elements only.

join() will concatenate the result by "." in a new string.

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Since other answers don't take care if the filename contains additional dots (i.e. "some.file.name.twig.php"), this solution will keep last two items only to isolate the extension.

Answer 3

You can use a simple explode to do it.

$string = 'index.twig.php';
list($filename, $extension) = explode('.', $string, 2);