public StatementPrefetch::fetchField($index = 0)
Returns a single field from the next record of a result set.
$index: The numeric index of the field to return. Defaults to the first field.
A single field from the next record, or FALSE if there is no next record.
Overrides StatementInterface::fetchField
public function fetchField($index = 0) { return $this->fetchColumn($index); }
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