(PHP 5)array_intersect_uassoc -- Computes the intersection of arrays with additional index check, compares indexes by a callback function
array_intersect_uassoc() returns an array
containing all the values of
that are present in all the arguments. Note that the keys are used in
the comparison unlike in array_intersect().
The index comparison is done by a user supplied callback function. It must return an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second.
Example 1. array_intersect_uassoc() example
The above example will output: