php man page for array_intersect_uassoc

ARRAY_INTERSECT_UASSOC(3)						 1						 ARRAY_INTERSECT_UASSOC(3)

array_intersect_uassoc - Computes the intersection of arrays with additional index check, compares indexes by a callback function

SYNOPSIS
       array array_intersect_uassoc (array  $array1, array  $array2, [array  $...], callable  $key_compare_func)

DESCRIPTION
       array_intersect_uassoc(3)  returns  an array containing all the values of $array1 that are present in all the arguments. Note that the keys
       are used in the comparison unlike in array_intersect(3).

PARAMETERS
	      o $array1
		- Initial array for comparison of the arrays.

	      o $array2
		- First array to compare keys against.

	      o $...
		- Variable list of array arguments to compare values against.

	      o $key_compare_func
		- The comparison function 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.
		int callback (mixed  $a, mixed	$b)

RETURN VALUES
	Returns the values of $array1 whose values exist in all of the arguments.

EXAMPLES
       Example #1

	      array_intersect_uassoc(3) example

	      <?php
	      $array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red");
	      $array2 = array("a" => "GREEN", "B" => "brown", "yellow", "red");

	      print_r(array_intersect_uassoc($array1, $array2, "strcasecmp"));
	      ?>

	      The above example will output:

	      Array
	      (
		  [b] => brown
	      )

SEE ALSO
       array_intersect(3),  array_intersect_assoc(3),  array_uintersect_assoc(3), array_uintersect_uassoc(3), array_intersect_key(3), array_inter-
       sect_ukey(3).

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