- var_dump: documentation ( source)
- get_defined_vars: documentation ( source)
- array_slice: documentation ( source)
<?php
$a = count(get_defined_vars());
$undef;
@$nothing = $undef;
$c = get_defined_vars();
@xdebug_debug_zval('nothing');
echo 'Declared vars:',"\n";
var_dump(xdebug_get_declared_vars());
echo 'Defined vars:<br>';
var_dump(array_slice($c, $a + 1));