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rest_validate_array_contains_unique_items( array $array )

Checks if an array is made up of unique items.

Parameters

$array

(array) (Required) The array to check.

Return

(bool) True if the array contains unique items, false otherwise.

Source

File: wp-includes/rest-api.php

function rest_validate_array_contains_unique_items( $array ) {
	$seen = array();

	foreach ( $array as $item ) {
		$stabilized = rest_stabilize_value( $item );
		$key        = serialize( $stabilized );

		if ( ! isset( $seen[ $key ] ) ) {
			$seen[ $key ] = true;

			continue;
		}

		return false;
	}

	return true;
}

Changelog

Version Description
5.5.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/rest_validate_array_contains_unique_items