var_dump($array) may not show the full depth with xdebug installed. To allow full dumps edit xdebug.ini
and add these lines:
xdebug.var_display_max_depth = -1
xdebug.var_display_max_children = -1
xdebug.var_display_max_data = -1
You can also set these at runtime:
ini_set('xdebug.var_display_max_depth', -1);
ini_set('xdebug.var_display_max_children', -1);
ini_set('xdebug.var_display_max_data', -1);