Definition :
The array_udiff_uassoc() function compares the keys and values of two or more arrays and returns the differences using the user-defined key and value comparison functions.
The basic syntax of the array_udiff_uassoc() function is given with:
array_udiff_uassoc(array1, array2, ..., value_compare_function, key_compare_function);
The array_udiff_uassoc() function accepts the following parameters.
| Parameter | Description |
|---|---|
| array1 | Required. Specifies the array to compare from. |
| array2 | Required. Specifies an array to compare against. |
| ... | Optional. Specifies more arrays to compare against. |
| value_compare_function | Required. Specifies a callback function to use for value comparison. |
| key_compare_function | Required. Specifies a callback function to use for key comparison. |
Example : Compare the keys and values of two arrays (using two user-defined functions for comparison) and return the differences:
Output :
Array
(
[c] => House
)