- var_dump: documentation ( source)
<?php
$petsounds = array("cat" => "meow",
"dog" => "woof",
"snake" => "hiss");
$petsounds{'mouse'} = "squeak";
var_dump($petsounds);
$obj = new stdClass;
$obj->{'ps'} = $petsounds;
$obj->ps{"fox"} = "Gding, ding, ding";
$obj->{'a123'} = "the end";
var_dump($obj);
echo is_array($obj->ps)? 'true':'false',"\n";
echo is_array($obj->{'a123'})? 'true':'false',"\n";