array_intersect_uassoc
PHP function
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(PHP 5, PHP 7, PHP 8)
Computes the intersection of arrays with additional index check, compares indexes by a callback function
Description
array_intersect_uassoc(array $array, array ...$arrays, callable $key_compare_func): array
array_intersect_uassoc() returns an array containing all the values of array that are present in all the arguments. Note that the keys are used in the comparison unlike in array_intersect().
Parameters
arrayInitial array for comparison of the arrays.
arraysArrays to compare keys against.
key_compare_funcDescription
Return Values
Returns the values of array whose values exist in all of the arguments.
Examples
array_intersect_uassoc() example
php
<?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:
output
Array
(
[b] => brown
)