php - finding keys in an array that match a pattern

Question

I have an array that looks like:

 Array ( [2.5] => ABDE [4.8] => Some other value ) 

How would I find any key/value pair where the k

Answer 1

you can simply loop through the array and check the keys

$array = array(...your values...);

foreach($array as $key => $value) {
    if (preg_match($pattern,$key)){
        // it matches
    }
}

You can wrap it in a function and pass your pattern as parameter