Online PHP editor | output for aOTbq

<?php $userdb = array( array( 'uid' => '100', 'name' => 'Sandra Shush', 'pic_square' => 'urlof100' ), array( 'uid' => '5465', 'name' => 'Stefanie Mcmohn', 'pic_square' => 'urlof100' ), array( 'uid' => '40489', 'name' => 'Michael', 'pic_square' => 'urlof40489' ) ); function find_user($userdb, $attributes) { foreach ($userdb as $key => $user) { if (empty(array_diff($attributes, $user))) return $key; } return false; } echo find_user($userdb, array('name' => 'Stefanie Mcmohn', 'uid' => 5465));