How to implement shopping cart function in PHP session

In the wamp environment, use PHP session session control to complete the shopping cart effect. The data is stored in an array for practice. There is no connection to the database. The effect is good and simple and easy to understand. The following are each Part of the code

common.php

1,'img'=>'img/1.jpg','title'=>'小米移动电源5000mAh','price'=>49), array('id'=>2,'img'=>'img/2.jpg','title'=>'20000mAh小米移动电源2','price'=>149), array('id'=>3,'img'=>'img/3.jpg','title'=>'小米圈铁耳机Pro','price'=>129), array('id'=>4,'img'=>'img/4.jpg','title'=>'小米家电动滑板车','price'=>1999), array('id'=>5,'img'=>'img/5.jpg','title'=>'小米笔记本','price'=>3499), array('id'=>6,'img'=>'img/6.jpg','title'=>'米家LED智能台灯','price'=>169), array('id'=>7,'img'=>'img/7.jpg','title'=>'小米体重秤','price'=>99), array('id'=>8,'img'=>'img/8.png','title'=>'小米电视3s 48英寸','price'=>2599) );

index.php

       
  
 
 我的购物车 ★ 
 
  $value):?> 
 
 " width="150" height="150" alt="小米移动电源5000mAh"> 
 
  
 
￥
 
加入购物车
 
  
 
 
  

action.php

 $value) { if($id == $value['id']){ $arrData = $arrPro[$key]; } } //用一个新的二维数组把商品信息存起来 $arrDatax[0][$arrData['id']] = $arrData['id']; $arrDatax[1][$arrData['id']] = $arrData['img']; $arrDatax[2][$arrData['id']] = $arrData['title']; $arrDatax[3][$arrData['id']] = $arrData['price']; $arrDatax[4][$arrData['id']] = 1; //判断是否有SESSION存在，有则在数组后添加，没有则直接存 if(empty($_SESSION['shopcar'])){ $_SESSION['shopcar'] = $arrDatax; header('Location:index.php'); }else{ //第一次购物之后的购物 //重新取出来，防止数据覆盖 $arrDataz = $_SESSION['shopcar']; if(in_array($id,$arrDataz[0])){ $arrDataz[4][$arrData['id']] += 1; $_SESSION['shopcar'] = $arrDataz; header('Location:index.php'); }else{ $arrDataz[0][$arrData['id']] = $arrData['id']; $arrDataz[1][$arrData['id']] = $arrData['img']; $arrDataz[2][$arrData['id']] = $arrData['title']; $arrDataz[3][$arrData['id']] = $arrData['price']; $arrDataz[4][$arrData['id']] = 1; $_SESSION['shopcar'] = $arrDataz; header('Location:index.php'); } } }else{ echo "购物车没有商品!"; }

spcar.php

 $value) { if($id == $value['id']){ $arrData = $arrPro[$key]; } } //用一个新的二维数组把商品信息存起来 $arrDatax[0][$arrData['id']] = $arrData['id']; $arrDatax[1][$arrData['id']] = $arrData['img']; $arrDatax[2][$arrData['id']] = $arrData['title']; $arrDatax[3][$arrData['id']] = $arrData['price']; $arrDatax[4][$arrData['id']] = 1; //判断是否有SESSION存在，有则在数组后添加，没有则直接存 if(empty($_SESSION['shopcar'])){ $_SESSION['shopcar'] = $arrDatax; header('Location:index.php'); }else{ //第一次购物之后的购物 //重新取出来，防止数据覆盖 $arrDataz = $_SESSION['shopcar']; if(in_array($id,$arrDataz[0])){ $arrDataz[4][$arrData['id']] += 1; $_SESSION['shopcar'] = $arrDataz; header('Location:index.php'); }else{ $arrDataz[0][$arrData['id']] = $arrData['id']; $arrDataz[1][$arrData['id']] = $arrData['img']; $arrDataz[2][$arrData['id']] = $arrData['title']; $arrDataz[3][$arrData['id']] = $arrData['price']; $arrDataz[4][$arrData['id']] = 1; $_SESSION['shopcar'] = $arrDataz; header('Location:index.php'); } } }else{ echo "购物车没有商品!"; }

delete.php

      

       
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