Regex Optional Groups?
php, preg-match, preg-replace, regex
Solution
Enclose with a non matching group and set it to optional : `(?:...)?`
/<!--menu:start(?::\(([0-9])\,([0-9])\))?-->(.*?)<!--menu:end-->/se
Problem
I seem to have confused myself with a preg_match regex I'm doing, so fresh eyes and help would be appreciated. My current regex is as follows: ``` /<!--menu:start:\(([0-9])\,([0-9])\)-->(.*?)<!--menu:end-->/se ``` I am looking to make the number input and colon e.g. :(1,4) optional, so it would match: ``` <!--menu:start--><!--menu:end--> ``` or ``` <!--menu:start:(0,3)--><!--menu:end--> ```