PHP: array_uintersect_uassoc

Description

array array_uintersect_uassoc ( array array1, array array2 [, array ..., callback data_compare_func, callback key_compare_func] )

array_uintersect_uassoc() 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_uintersect(). Both the data and the indexes are compared by using a callback functions.

Example 1. array_uintersect_uassoc() example

<?php $array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red"); $array2 = array("a" => "GREEN", "B" => "brown", "yellow", "red"); print_r(array_uintersect_uassoc($array1, $array2, "strcasecmp", "strcasecmp")); ?>
The above example will output:
Array ( [a] => green [b] => brown )

For comparison is used the 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.

User Contributed Notes
array_uintersect_uassoc

aidan at php dot net
31-Aug-2004 05:52


Please note, the correct function synopsis is:



array array_uintersect_uassoc ( array array1, array array2 [, array ...], callback data_compare_func, callback key_compare_func)



You may specifiy as many arrays as you like, but the last two parameters must be valid call back functions.

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