How to get Column Name With Zend DB
Previous answer applies only to version < 2.
For current version of ZF (2.2) use:
$table = new Zend\Db\TableGateway\TableGateway('table', $Dbadapter, new Zend\Db\TableGateway\Feature\MetadataFeature());
$columns = $table->getColumns();
http://framework.zend.com/manual/2.2/en/modules/zend.db.table-gateway.html#tablegateway-features http://framework.zend.com/manual/2.2/en/modules/zend.db.metadata.html