<?php
/*
 * Author: Wesley silva
 * Date: 06/08/2019
 */

function getDestination(){
    $starSystems = ['SIRIUS', 'LALANDE', 'PROCION', 'ALPHA CENTAURI', 'BARNARD'];
    $result = array_map(function ($starSystem) {
        $vowels = [1 => 'A', 2 => 'E', 3 => 'I', 5 => 'O', 8 => 'U'];
        $c = 0;
        $star = str_split($starSystem);
        for ($s = 0; $s < sizeof($star); $s++) {
            $vowel = $star[$s];
            if (in_array($vowel, $vowels)) {
                if ($c === 0) {
                    $c = array_search($vowel, $vowels);
                } else {
                    $c = $c * array_search($vowel, $vowels);
                }
            }
        }
        return $c;
    }, $starSystems);
    return $starSystems[array_search(75, $result)];
}
var_dump(getDestination());