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_INTERSECT_KEY(3)							 1						    ARRAY_INTERSECT_KEY(3)

array_intersect_key - Computes the intersection of arrays using keys for comparison

SYNOPSIS

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

DESCRIPTION

       array_intersect_key(3) returns an array containing all the entries of $array1 which have keys that are present in all the arguments.

PARAMETERS

	      o $array1
		- The array with master keys to check.

	      o $array2
		- An array to compare keys against.

	      o $...
		- A variable list of arrays to compare.

RETURN VALUES

	Returns an associative array containing all the entries of $array1 which have keys that are present in all arguments.

EXAMPLES

       Example #1

	      array_intersect_key(3) example

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

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

	      The above example will output:

	      array(2) {
		["blue"]=>
		int(1)
		["green"]=>
		int(3)
	      }

	In our example you see that only the keys 'blue' and 'green' are present in both arrays and thus returned. Also notice that the values for
       the keys 'blue' and 'green' differ between the two arrays. A match still occurs because only the keys are checked. The values returned  are
       those of $array1.

	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.

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_key(3),
       array_diff_ukey(3), array_intersect(3), array_intersect_assoc(3), array_intersect_uassoc(3), array_intersect_ukey(3).

PHP Documentation Group 												    ARRAY_INTERSECT_KEY(3)