src/Communibase/Connector.php
public function getIds($entityType, array $selector = [], array $params = [])
    {
        $params['fields'] = '_id';

        return array_column($this->search($entityType, $selector, $params), '_id');
    }
public function getIds($entityType, array $selector = [], array $params = [])
    {
        $params['fields'] = '_id';

        return array_column($this->search($entityType, $selector, $params), '_id');
    }
public function getIds ( $ entityType , array $ selector = [ ] , array $ params = [ ] ) { $ params [ 'fields' ] = '_id' ; return array_column ( $ this -> search ( $ entityType , $ selector , $ params ) , '_id' ) ; }
Get result entityIds of a certain search

@param string $entityType
@param array $selector (optional)
@param array $params (optional)

@return array

@throws Exception
Get result entityIds of a certain search