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<?php
/**
* Trait Google\Site_Kit\Core\Util\Migrate_Legacy_Keys
*
* @package Google\Site_Kit\Core\Util
* @copyright 2021 Google LLC
* @license https://www.apache.org/licenses/LICENSE-2.0 Apache License 2.0
* @link https://sitekit.withgoogle.com
*/
namespace Google\Site_Kit\Core\Util;
/**
* Trait for a class that migrates array keys from old to new.
*
* @since 1.2.0
* @access private
* @ignore
*/
trait Migrate_Legacy_Keys {
/**
* Migrates legacy array keys to the current key.
*
* @since 1.2.0
*
* @param array $legacy_array Input associative array to migrate keys for.
* @param array $key_mapping Map of legacy key to current key.
* @return array Updated array.
*/
protected function migrate_legacy_keys( array $legacy_array, array $key_mapping ) {
foreach ( $key_mapping as $legacy_key => $current_key ) {
if ( ! isset( $legacy_array[ $current_key ] ) && isset( $legacy_array[ $legacy_key ] ) ) {
$legacy_array[ $current_key ] = $legacy_array[ $legacy_key ];
}
unset( $legacy_array[ $legacy_key ] );
}
return $legacy_array;
}
}