potential function name conflict: _multi_array_key_exists()

Hi guys,

I was googling "_multi_array_key_exists drupal" to see if this functionality was available in Drupal, and chanced upon your module because of some code published on drupalcode.org.

I assume you have taken this function from php.net comments, as many people do. However there is a slight problem here. If someone is also developing on their drupal site and happens to copy this function from the php.net comments it will conflict with the one in your module.

Please prefix the function name with the short name of your module.

Functions and variables should be named using lowercase, and words should be separated with an underscore. Functions should in addition have the grouping/module name as a prefix, to avoid name collisions between modules.

http://drupal.org/coding-standards#naming