php regex prevent replacing $ symbol

Question

I have a php function which generates tags from string:

function generate_tags($text)
{
    $string = preg_replace('/[^\p{L}\p{N}\s]/u', ' ', $text);
    $string = preg_replace('/\s+/', ' ', $string);
    $string = mb_strtolower($string, 'UTF-8');
    $keywords = explode(' ', trim($string));
    foreach($keywords as $key => $value)
    {
        if((strlen($value)) < 1)
        {
            unset($keywords[$key]);
            continue;
        }
    }
    $result = array_unique($keywords);
    $result = array_values($result);
    return $result;
}

The string is: Ke$ha - We Are Who We Are (Cherry Cole Private Booty) Full Oficial Version

But it replaces $ symbol. How can I prevent $ symbol on my function?

[This question](http://stackoverflow.com/q/767714/5620297) may be of use. Actually, [this question](http://stackoverflow.com/q/18993863/5620297) will probably be more helpful — Kaspar Lee, Mar 19 '16 at 18:33

score 1 · Accepted Answer · answered Mar 19 '16 at 18:35

1

Modify the first preg_replace to skip over $ as well:

$string = preg_replace('/[^\p{L}\p{N}\s$]/u', ' ', $text);

answered Mar 19 '16 at 18:35

hjpotter92

78,589
36
144
183

1

@DilaraAliyeva You realize you just have to press the tick underneath the voting buttons. Why have you waited 27 minutes to do that? – Kaspar Lee Mar 19 '16 at 19:06
I forgot :/ Sorry :/ – Aykhan Amiraslanli Mar 19 '16 at 19:07

score 0 · Answer 2 · answered Oct 26 '20 at 18:02

0

Modify the first preg_replace to skip over $ as well:$string = preg_replace('/[^\p{L}\p{N}\s$]/u', ' ', $text); you just have to press the tick underneath the voting buttons.

answered Oct 26 '20 at 18:02

XxHalfQuarentinedxX

1
2

Why did you copy the previous answer? – Toto Oct 26 '20 at 19:08

php regex prevent replacing $ symbol

2 Answers2