PHP array_search for multi dimensional array and return key

Question

I\'m trying to search for a value in a multi dimensional array (below is only a part of the big array) and get the key for that value but I can\'t manage it by myself. Here is w

Answer 1

PHP code demo

   Array
        (
            0=>   "SMEG - 30",
            1=>   "ALES",
            2=>   "-",
            3=>   "-",
            4=>   "-",
            5=>   "ALES",
            6=>   "44-",
            7=>   "-",
            8=>   "FR*S30*E36*1*1",
            9=>   "FR*S30*E36*1*1",
            10=>   "US*S30",
            11=>   "Oui",
            12=>   "3376",
            13=>   "Normale",
            14=>   "-"
        ),

    1=>   Array
        (
            0=>   "SMEG - 30",
            1=>   "ALES",
            2=>   "-",
            3=>   "Chemin Des Sports",
            4=>   "-",
            5=>   "ALES",
            6=>   "-",
            7=>   "-",
            8=>   "FR*S30*E37*2*1",
            9=>   "FR*S30*E37*2*1",
            10=>   "FR*S30",
            11=>   "Oui",
            12=>   "33762",
            13=>   "Normale",
            14=>   "-",
        ),

    2=>   Array
        (
            0=>   "SMEG - 30",
            1=>   "ALES",
            2=>   "0",
            3=>   "Ecole Des Mines",
            4=>   "-",
            5=>   "ALES",
            6=>   "4-",
            7=>   "-",
            8=>   "FR*S30*E38*2*1",
            9=>   "FR*S30*E38*2*1",
            10=>   "FR*S30",
            11=>   "Oui",
            12=>   "3376",
            13=>   "Normale",
            14=>   "-",
        )
);
$requiredKey=null;
$requiredValue=null;
finder($array,"FR*S30*E37*2*1");
function finder($array,$search)
{
    global $requiredKey,$requiredValue;
    foreach($array as $key => $value)
    {
        if(in_array($search, $value))
        {
            $requiredKey=$key;
            $requiredValue=$search;
            break;
        }
    }
}
echo $requiredKey;
echo $requiredValue;