优化运费计算

common/components/freight.php

@@ -45,30 +45,46 @@ class freight
         $cost = 8; //起步价
         //距离计算
         Yii::info("距离为：".$phpStatDistance);
-        if($phpStatDistance > 10){
-            //每新增5km 加6
-            $diff = ceil(($phpStatDistance - 10) / 5);
-            $diffCost = $diff*6;
-            $cost += $diffCost;
-        }elseif ($phpStatDistance <=10 && $phpStatDistance > 2){
-            //每新增1km加2
-            $diff = ceil(($phpStatDistance - 2));
-            $diffCost = $diff*2;
-            $cost += $diffCost;
+        $phpStatDistance = $phpStatDistance -2;
+        if($phpStatDistance){
+            if ($phpStatDistance <=10){
+                //每新增1km加2
+                $diffCost = $phpStatDistance*2;
+                $cost += $diffCost;
+            }else{
+                //8*2
+                $cost += 16;
+            }
+            if($phpStatDistance > 10){
+                //每新增5km 加6
+                $diff = ceil(($phpStatDistance - 10) / 5);
+                $diffCost = $diff*6;
+                $cost += $diffCost;
+            }
         }
+
         //重量计算
         Yii::info("重量为：".$weight);
-        if($weight > 10){
-            //每新增 5kg 加6
-            $diff = ceil(($weight - 10) / 5);
-            $diffCost = $diff*6;
-            $cost += $diffCost;
-        }elseif ($weight <=10 && $weight > 2){
-            //每增1 kg 加2
-            $diff = ceil(($weight - 2));
-            $diffCost = $diff*2;
-            $cost += $diffCost;
+        $weight = $weight -2;
+        if($weight){
+            if ($weight <=10){
+                //每增1 kg 加2
+                $diff = ceil(($weight - 2));
+                $diffCost = $diff*2;
+                $cost += $diffCost;
+                $weight = $weight -2;
+            }else{
+                //8*2
+                $cost += 16;
+            }
+            if($weight > 10){
+                //每新增 5kg 加6
+                $diff = ceil(($weight - 10) / 5);
+                $diffCost = $diff*6;
+                $cost += $diffCost;
+            }
         }
+
         return $cost;
     }