Terrible with regex

How can I make this regular expression replace spaces as well any non latin alpha numeric character?

preg_replace('/[^a-zA-Z0-9\s]/', '', $title)

T开发者_开发百科hanks a lot

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[^...] matches anything but ....
\s matches spaces.

You don't want it to not match spaces.

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Everything looks ok, you just have to assing it to a variable!

$title = preg_replace('/[^a-zA-Z0-9\s]/', '', $title)

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I would just do:

<?php
preg_match_all('/[a-zA-Z0-9\s]/', $title, $out);
$ntitle = implode($out,'');
?>

EDIT: Briedis is right though, your regex works fine.