- var_dump: documentation ( source)
<?php
$x = array();
$x["0"] = "foo";
$x["1"] = "bar";
foreach ($x as $k => $v) {
var_dump($k);
var_dump($v);
}
echo "-----------\r\n";
$x["3"] = "baz";
foreach ($x as $k => $v) {
var_dump($k);
var_dump($v);
}