rest_validate_array_contains_unique_items( array $input_array )

Checks if an array is made up of unique items.

Parameters

$input_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( $input_array ) {
	$seen = array();

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

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

			continue;
		}

		return false;
	}

	return true;
}

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Changelog

Changelog
Version Description
5.5.0 Introduced.