wikimedia / mediawiki

		$rows = 0;

		$res = $this->select( $table, [ 'rowcount' => 'COUNT(*)' ], $conds, $fname, $options );

		if ( $res ) {

			$row = $this->fetchRow( $res );

			$rows = ( isset( $row['rowcount'] ) ) ? (int)$row['rowcount'] : 0;

		}

		return $rows;

	}

		$sql = $this->selectSQLText( $tables, '1', $conds, $fname, $options, $join_conds );

		$res = $this->query( "SELECT COUNT(*) AS rowcount FROM ($sql) tmp_count", $fname );

		if ( $res ) {

			$row = $this->fetchRow( $res );

			$rows = ( isset( $row['rowcount'] ) ) ? (int)$row['rowcount'] : 0;

		}

		return $rows;

	}