检测字符串中的括号中的价格（PHP）

Question

I'm looking to analyse strings in PHP. They appear as such:

Premium Upgrade (€10.00)

I want to detect when a string contains '(€10.00)', however the price will change. Hence I'm guessing a RegEx for 'Bracket, Float, Bracket' The end result is I want to remove the price from the string, however, its possible something else may appear in the brackets e.g.

Premium Upgrade (Per Person)

And hence I can't just explode or substring on the first opening brackets. However, there could be two, or more, brackets e.g.

Premium Upgrade (Per Person) (€10.00)

Hence in this instance, I would need to output:

Premium Upgrade (Per Person)

Thus my high level flow would be:

• Check string, does it contact brackets and float?
• Yes, remove the brackets and float, leaving other brackets in place, proceed.
• No brackets and float? Leave as is, proceed.

My pysedo code is:

//Get my string
$str = $meta->display_key;

//I need a RegEx here to detect my bracket and float e.g. (€X.YY)
if (strpos($str, '(') !== false) {
    //Need to remove brackets and float here, but leave all other brackets in place.
    $formatted_string  = substr($str, 0, strrpos($str, '('));
}

//Do nothing, the string doesn't match my criteria
else $display_key_formatted = $str; 

Answer 1

To delete a price in brackets that is in the (+CURRENCY_SYMBOL+FLOAT_OR_INT_NUMBER+) you may use

$res = preg_replace('~\s*\(\p{Sc}\d[.\d]*\)~u', '', $s);

See the regex demo

Details

• \s* - 0+ whitespaces
• \( - a (
• \p{Sc} - any currency char
• \d - a digit
• [.\d]* - 0+ chars that are either . or a digit
• \) - a )

See the PHP demo:

$re = '/\s*\(\p{Sc}\d[.\d]*\)/u';
$str = ' TEXT (text) (€10.00)';
$res = preg_replace($re, '', $str);
echo $res; // =>  TEXT (text)