<?php

$a = array(
    array(1,2,3),
    "",
    1,
    2.5,
    0,
    "string",
    "123",
    "2.5",
    NULL,
    true,
    false,
    new stdclass,
    array(),
    PHP_INT_MAX,
    (string)PHP_INT_MAX
);

foreach ($a as $var) {
    try {
        $var++;
    } catch (TypeError $e) {
        echo $e->getMessage(), "\n";
    }
    var_dump($var);
}

echo "Done\n";
?>