Sort multidimensional array alphabetically

Question

How can I sort a array like this alphabetically:

$allowed = array(
  \'pre\'    => array(),
  \'code\'   => array(),
  \'a\'      => array(
                 


        

Answer 1

bool ksort ( array &$array [, int $sort_flags = SORT_REGULAR ] )

as described here. The 'See Also' section is usually very helpful