append to array problem

[cupboy]

<?php
$w = array('one' => '1','two');
array_push($w,('three' => 'stuff')); // what is the correct syntax for this?
foreach ($w as $item) {
print $item . '<br />'; }

?>

[laserlight]

<?php
$w = array('one' => '1', 'two');
$w['three'] = 'stuff';
foreach ($w as $item) {
    print $item . '<br />';
}
?>

You may want to read the PHP manual on arrays.