[SOLVED] php multi-dimensional array help

[spitfire1945]

Hey

 

I was just wondering how I can check whether a multi-dimensional array and its children are empty

 

var[aa][xx]

var[aa][yy]

var[aa][zz]

 

var[bb][xx]

var[bb][yy]

var[bb][zz]

 

if I do this:

 

<?php
if (empty($_POST['var']['aa']) ){
    echo "Array is empty"
}
?>

 

but its always.. not empty?

[.josh]

Another way of looking at

 

var[aa][xx]
var[aa][yy]
var[aa][zz]

 

is like this:

 

var[aa] = array('xx' => 'something', 'yy' => 'something', 'zz', => 'something');

 

So you see, [aa] is not empty because it has 3 elements.

 

 

[spitfire1945]

yeah that's what I thought it has child nodes

 

but is there a way to test whether the values of

 

var[aa][xx]

var[aa][yy]

var[aa][zz]

 

exits or at least one these values exist? cause I need to construct a query and if i don't test whether any of the above group is empty then its just going to insert blank values into the database.. which will be a pain in the bum to prune later

[btherl]

if (!empty($var['aa']['xx']))

 

will tell you if $var['aa']['xx'] is not empty().  Would that be enough?

[spitfire1945]

omg i am such an idiot, i was running on tests on completely wrong variable names grrr

 

i was wondering for such a long time why empty() wasnt working

 

cheers