insert weekly score

insert.php

<?php
// MADE BY M4UNDY
// ENTER SHOOTERS WEEKLY SCORES INTO MYSQL DATABASE
$shooter = mysqli_real_escape_string($link, $_POST['shooter']);

$values = [];
foreach ($_POST['week_score'] as $key => $score) {
    $score = trim(mysqli_real_escape_string($link, $score));
    if (!empty($score)) {
        $values[] = "('$shooter','$key','$score')";
    }
}

if (!empty($values)) {
    $values = implode (' , ', $values);

    $sql = "INSERT INTO scores (shooter, week_num, week_score) VALUES $values";
    mysqli_query($link, $sql);
}

mysqli_close($link);

?>