- var_dump: documentation ( source)
<?php
$a = [
"0" => "Integer index",
"03" => "Integer index with leading 0",
"2b" => "waifu",
"02 " => "trash waifu",
" 1" => "I'm running out of ideas",
"5.5" => "Float",
];
$str = "Hello";
var_dump($a);
var_dump($str["003"]);
var_dump($str["3"]);