I'm trying to use regular expressions in PHP to extract specific patterns from a string, but I'm confused about whether to use `preg_match()` or `preg_match_all()`.
I understand that `preg_match()` returns only the first match found, while `preg_match_all()` returns all matches found. However, I'm not sure which one would be more suitable for my situation.
Here's the context: I have a string that contains multiple occurrences of a certain pattern, and I want to extract all of them into an array. So, I'm wondering if it's better to use `preg_match()` in a loop and keep appending the matches to an array, or simply use `preg_match_all()` and let it handle everything in one go.
Which approach do you think would be more efficient and should I be concerned about memory usage with `preg_match_all()` if the string is very large? Are there any other considerations I should keep in mind when choosing between the two functions?
I appreciate any insights or suggestions you can provide. Thanks in advance!