removeForeignKey example

private function cleanup(Schema $schema): void
    {
        foreach ($schema->getTables() as $table) {
            if ($table->getComment() === self::COMMENT) {
                $schema->dropTable($table->getName());

                continue;
            }

            foreach ($table->getForeignKeys() as $foreignKey) {
                if (\str_starts_with($foreignKey->getName(), 'fk_ce_')) {
                    $table->removeForeignKey($foreignKey->getName());
                }
            }

            foreach ($table->getColumns() as $column) {
                if ($column->getComment() === self::COMMENT) {
                    $table->dropColumn($column->getName());
                }
            }
        }
    }
}