Question

how can i to remove all characters non-language ?

i want to remove characters like this below, and all other of not language characters:



i using this:

preg_replace("/[^a-z0-9A-Z\-\'\|\!\.\?\:\)\(\;\*\"]/u", " ", $text );

this is good for english,
i need to approve all language characters, like Russian,arabic,hebrew,japan…

Are there any string functions I can use to leave all language characters?

thanks

Answer 1

No regex will be perfect for what you want – language and writing are just too complex for this. But an approximation could be

preg_replace('/[^\p{L}\p{M}\p{Z}\p{N}\p{P}]/u', ' ', $text);

This will replace anything by a space that’s not a Unicode character with one of the properties “letter”, “mark”, “separator”, “number” or “punctuation”.