I hope you're all doing well. I have been working with PHP lately and have come across regular expressions in my code. I understand the basics of regular expressions, but I'm struggling a bit with the concept of "groups". I have seen some examples where people use parentheses to create groups within regular expressions, but I'm not entirely sure how they work.
Could someone please explain to me how groups work in PHP regular expressions? What are they used for? And how can I access the content captured by a group?
I would really appreciate it if someone could shed some light on this topic. Any explanations or examples would be extremely helpful.
Thank you in advance!