PgsqlConnection::getVersion

public function getVersion()
{
	if ($this->version == null)
	{
		$this->connectInternal();
		$version = trim(pg_version($this->resource)['server']);

		preg_match("#^.*?([0-9]+\.[0-9]+)#", $version, $ar);
		$this->version = $ar[1];
	}

	return array($this->version, null);
}