public function StatementWrapper::fetchCol in Drupal 9

Returns an entire single column of a result set as an indexed array.

Note that this method will run the result set to the end.

Parameters

$index: The index of the column number to fetch.

Return value

An indexed array, or an empty array if there is no result set.

Overrides StatementInterface::fetchCol

File

core/lib/Drupal/Core/Database/StatementWrapper.php, line 165

Class

StatementWrapper

Implementation of StatementInterface encapsulating PDOStatement.

Namespace

Drupal\Core\Database

Code

public function fetchCol($index = 0) {
  return $this
    ->fetchAll(\PDO::FETCH_COLUMN, $index);
}