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array_uintersect_assoc

Description

The array_uintersect_assoc of Array for PHP computes the intersection of arrays with additional index check, compares data by a callback function.

Syntax

array_uintersect_assoc(
    array $array,
    array ...$arrays,
    callable $value_compare_func
): array

Parameters

array

The array to compare from.

arrays

The arrays to compare against.

value_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.

callback(
    mixed $a,
    mixed $b
): int

Return

Returns an array containing all the values of array that are present in all the arguments.

Examples

1 · array arrays · one · value_compare_func

<?

function mycallback($mya, $myb)
{
    return $mya <=> $myb;
}

$array =
[
    "a" => 0,
    "b" => 1,
    "c" => 2,
    "d" => 3
];
$arrays =
[
    "a" => 0,
    "b" => 4,
    "e" => 2,
    "f" => 5
];
$value_compare_func = "mycallback";

$return = array_uintersect_assoc($array, $arrays, $value_compare_func);

print_r($return);
Array
(
    [a] => 0
)

2 · array arrays · multiple · value_compare_func

<?

function mycallback($mya, $myb)
{
    return $mya <=> $myb;
}

$array =
[
    "a" => 0,
    "b" => 1,
    "c" => 2,
    "d" => 3
];
$arrays1 =
[
    "a" => 0,
    "b" => 4,
    "e" => 2,
    "f" => 5
];
$arrays2 =
[
    "a" => 0,
    "b" => 4,
    "e" => 2,
    "f" => 5
];
$value_compare_func = "mycallback";

$return = array_uintersect_assoc($array, $arrays1, $arrays2, $value_compare_func);

print_r($return);
Array
(
    [a] => 0
)