PHP mb_ereg_replace not replacing while preg_replace works as intended

Question

I am trying to replace in a string all non word characters with empty string expect for spaces and the put together all multiple spaces as one single space.

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Answer 1

mb_ereg_replace doesn't use separators. You may or may not also have to specify the encoding before.

mb_regex_encoding("UTF-8");
//regex could also be \W
$cleanedString = mb_ereg_replace('[^\w]', ' ', $name);
$cleanedString = mb_ereg_replace('\s+', ' ', $cleanedString);