当我返回我的数组我得到[{"product":"TEST_1","best_selling_product":"305"},{"product":"IPHONE 4S","best_selling_product":"108"}]
,但Highcharts不让我使用字符串作为价值,那么我怎么能改变它为int或浮动?我的后端功能是本我该如何修改我的JSON结果?
function best_selling_product(){
$sql = "SELECT product,SUM(sale_detail.amount) AS best_selling_product FROM sale_detail INNER JOIN product ON sale_detail.idproduct = product.idproduct GROUP BY sale_detail.idproduct ORDER BY SUM(sale_detail.amount) DESC LIMIT 0,5";
$result = $this->conexion->conexion->query($sql);
$array = array();
while($record = $result->fetch_array(MYSQLI_ASSOC)){
$array[] = $record;
}
return $array;
$this->conexion->cerrar();
}