public static mixed sum ([array $parameters])
Allows to calculate a sum on a column that match the specified conditions
1 2 3 4 5 6 7 | //How much are all robots? $sum = Robots::sum(array('column' => 'price')); echo "The total price of robots is ", $sum, "\n"; //How much are mechanical robots? $sum = Robots::sum(array("type = 'mechanical'", 'column' => 'price')); echo "The total price of mechanical robots is ", $sum, "\n"; |
Please login to continue.