i have an array and i need to iterate the array and return all matches

Answer 1

Which language please?

Answer 2

rly? this is easy: just iterate trough the array en check with an if statement if the element matches with what you want.

You have to search yourself for these little things, if you do, you are going to learn effective. But if you're going to ask for answers for little problems like this, you are then barely going to make progress.