Stalker_RED

function foo($template, $n_range = [0,0], $nn_range = [0,0]): array {
    $out = [];
    for ($n = $n_range[0]; $n <= $n_range[1]; $n++) {
        for ($nn = $nn_range[0]; $nn <= $nn_range[1]; $nn++) {
            $out[] = str_replace(['{n}', '{nn}'], [$n, $nn], $template);
        }
    }
    return $out;
}

function getData() {
    return array(
        'surname' => filter_input(INPUT_POST, 'surname', FILTER_SANITIZE_STRING),
        'name' => filter_input(INPUT_POST, 'name', FILTER_SANITIZE_STRING),
        'email' => filter_input(INPUT_POST, 'email', FILTER_VALIDATE_EMAIL),
        'phone' => filter_input(INPUT_POST, 'phone', FILTER_SANITIZE_STRING),
        'comment' => filter_input(INPUT_POST, 'comment', FILTER_SANITIZE_STRING),
        'cart' => json_decode(filter_input(INPUT_POST, 'comment', FILTER_SANITIZE_STRING) ?: '[]'),
    );
}

const el = document.querySelector('#content')
var array = el.textContent.split(',')

$data = [];
foreach($arr1 as $key => $val) {
  $data[] = [
    'product_id' => $val,
    'price' => $arr2[$key],
    'count' => $arr3[$key],
  ];
}

let filtered = sell
    .filter(el => el.breed === breed && el.size === size)
    .reduce((prev, curr) => prev.cost < curr.cost ? prev : curr, {cost: Infinity})

Возвращаемые значения

Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.

let min = [
  [2, 7, 2],
  [2, 5, 4],
  [2, 1, 5],
  [3, 1, 2]
].reduce((acc, subArray)=>Math.min(...subArray, acc), Infinity)