替换字母，数字和空格以外的所有字符

Question

I have a problem when i use preg_replace . I have this code :

$title = 'this       $@*$@)(*$)(@*) 89898 is  '  an  "" exemple !!!:';
$titlefinal = preg_replace('/[^ \w]+/', '', $title);

This echo's : this 89898 is 039 an quotquot exemple

This code shown only the letters and numbers but it shows the '039' for the ' and 'quotquot' for the "" , how can i make my code so only numbers, letters and space whould show up nothing else.

Found it! After another research on stackoverflow i figured this code:

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

Answer 1

$title = preg_replace('/[^\da-z ]/i', '', $title);