this check not in PHP7 ckt code example

Example 1: php 7

<?php
// Coercive mode
function sumOfInts(int ...$ints)
{
    return array_sum($ints);
}

var_dump(sumOfInts(2, '3', 4.1));

Example 2: null collapse operator php

$name = $_GET['name'] ?? $user_name ?: 'anonymous';