- var_dump: documentation ( source)
<?php
$options = [
[1, 1],
[0, 1],
[0, 2],
];
foreach ($options as $val) {
$a = ($val[0] ?: $val[1]);
$b = ($val[0] || $val[1]);
$c = ($val[0] OR $val[1]);
echo "Trying {$val[0]}:{$val[1]} -> \n";
var_dump($a, $b, $c);
echo "\n";
}