## Example

`

     array array_diff_uassoc ( array $array1 , array $array2 [, array $... ], callback $key_compare_func )

`

## Description

Compares array1 against array2 and returns the difference. Unlike array_diff() the array keys are used in the comparison. Unlike array_diff_assoc() an user supplied callback function is used for the indices comparison, not internal function.

## Return Values

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