yii\console\controllers\BaseMigrateController::extractMigrationVersion PHP Method

extractMigrationVersion() private method

Checks if given migration version specification matches migration base name.
Since: 2.0.10
private extractMigrationVersion ( string $rawVersion ) : string | false
$rawVersion string raw version specification received from user input.
return string | false actual migration version, `false` - if not match.
    private function extractMigrationVersion($rawVersion)
    {
        if (preg_match('/^m?(\\d{6}_?\\d{6})(\\D.*)?$/is', $rawVersion, $matches)) {
            return 'm' . $matches[1];
        }
        return false;
    }