_upgrade_cron_array( array $cron ): array

1331function _upgrade_cron_array( $cron ) {1332	if ( isset( $cron['version'] ) && 2 === $cron['version'] ) {1333		return $cron;1334	}1335 1336	$new_cron = array();1337 1338	foreach ( (array) $cron as $timestamp => $hooks ) {1339		foreach ( (array) $hooks as $hook => $args ) {1340			$key = md5( serialize( $args['args'] ?? array() ) );1341 1342			$new_cron[ $timestamp ][ $hook ][ $key ] = $args;1343		}1344	}1345 1346	$new_cron['version'] = 2;1347 1348	update_option( 'cron', $new_cron, true );1349 1350	return $new_cron;1351}