array_intersect_uassoc(3) [php man page]

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).

PHP Documentation Group 												 ARRAY_INTERSECT_UASSOC(3)

ARRAY_DIFF_KEY(3)							 1							 ARRAY_DIFF_KEY(3)

array_diff_key - Computes the difference of arrays using keys for comparison

SYNOPSIS

       array array_diff_key (array  $array1, array  $array2, [array  $...])

DESCRIPTION

	Compares  the  keys  from $array1 against the keys from $array2 and returns the difference. This function is like array_diff(3) except the
       comparison is done on the keys instead of the values.

PARAMETERS

	      o $array1
		- The array to compare from

	      o $array2
		- An array to compare against

	      o $...
		- More arrays to compare against

RETURN VALUES

	Returns an array containing all the entries from $array1 whose keys are not present in any of the other arrays.

EXAMPLES

       Example #1

	      array_diff_key(3) example

	       The two keys from the key => value pairs are considered equal only if (string) $key1 === (string) $key2 . In other words  a  strict
	      type check is executed so the string representation must be the same.

	      <?php
	      $array1 = array('blue'  => 1, 'red'  => 2, 'green'  => 3, 'purple' => 4);
	      $array2 = array('green' => 5, 'blue' => 6, 'yellow' => 7, 'cyan'	 => 8);

	      var_dump(array_diff_key($array1, $array2));
	      ?>

	      The above example will output:

	      array(2) {
		["red"]=>
		int(2)
		["purple"]=>
		int(4)
	      }

NOTES

       Note

	       This  function  only  checks  one  dimension  of  a  n-dimensional  array.  Of  course  you  can  check	deeper dimensions by using
	      array_diff_key($array1[0], $array2[0]);.

SEE ALSO

       array_diff(3), array_udiff(3), array_diff_assoc(3), array_diff_uassoc(3), array_udiff_assoc(3), array_udiff_uassoc(3),  array_diff_ukey(3),
       array_intersect(3), array_intersect_assoc(3), array_intersect_uassoc(3), array_intersect_key(3), array_intersect_ukey(3).

PHP Documentation Group 													 ARRAY_DIFF_KEY(3)