function for_Each($array){    //Creates function for_Each that takes $array as param.
    if ( count($array) === 0 )    //Error if $array is empty.
    {
        throw new Exception('MOM, this one is empty already!',2);
    }

    for ( $i = 0; $i < count($array); $i++ )    //Loop 'for' created to go through $array with $i while $i < count($array).
    {
        echo $i . ':' . $array[$i] . PHP_EOL;    //Displays $i (the array's index), then ':', then $array[$i] (the value corresponding to the index of $array)
    }
}