- var_dump: documentation ( source)
<?php
function incre() {
return [
1 => null,
2 => null,
3 => 1,
];
}
$a = incre()[0] ?? 0;
var_dump($a);
$b = incre()[1] ?? 0;
var_dump($b);
$c = incre()[3] ?? 0;
var_dump($c);