PHP中session實現購物車功能的案例

發布時間：2020-07-18 14:50:48 來源：億速云閱讀：161 作者：清晨欄目：編程語言

小編給大家分享一下PHP中session實現購物車功能的案例，相信大部分人都還不怎么了解，因此分享這邊文章給大家學習，希望大家閱讀完這篇文章后大所收獲，下面讓我們一起去學習方法吧！

在wamp環境下，用PHP的session會話控制完成購物車的效果，數據存放在數組里練習，沒有連接數據庫，效果不錯，簡單易懂,以下是各部分的代碼

common.php

<?php
header("content-type:text/html;charset=utf-8");
$arrPro = array(
    array('id'=>1,'img'=>'img/1.jpg','title'=>'小米移動電源5000mAh','price'=>49),
    array('id'=>2,'img'=>'img/2.jpg','title'=>'20000mAh小米移動電源2','price'=>149),
    array('id'=>3,'img'=>'img/3.jpg','title'=>'小米圈鐵耳機Pro','price'=>129),
    array('id'=>4,'img'=>'img/4.jpg','title'=>'小米家電動滑板車','price'=>1999),
    array('id'=>5,'img'=>'img/5.jpg','title'=>'小米筆記本','price'=>3499),
    array('id'=>6,'img'=>'img/6.jpg','title'=>'米家LED智能臺燈','price'=>169),
    array('id'=>7,'img'=>'img/7.jpg','title'=>'小米體重秤','price'=>99),
    array('id'=>8,'img'=>'img/8.png','title'=>'小米電視3s 48英寸','price'=>2599)
  );

index.php

<?php 
header("content-type:text/html;charset=utf-8");
require 'common.php';
session_start();
$sum = 0;
$class = "";
//判斷左上角購物車的樣式顯示
if(!empty($_SESSION['shopcar'])){
  $data = $_SESSION['shopcar'];
  $sum = array_sum($data[4]);
  $class = "on";
  //右上角圓點
    if(empty($data[0])){
      $class = "";
    }
  }
?>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>商品展示</title>
  <style type="text/css">
  section{
    width:1032px;
    height: 700px;
    margin: 40px auto;
  }
  .top{
    float: right;
    position: relative;
    width: 190px;
    height: 34px;
    border: 1px solid #ccc;
    margin-right: 32px;
    text-align: center;
    line-height: 34px;
    border-radius: 4px;
    transition: all .3s linear;
    -moz-transition: all .3s linear;
    -webkit-transition: all .3s linear;
  }
  .top a{
    color: #d00;
  }
  .top:hover{
    width: 210px;
    color: #fff;
    font-weight: bold;
    background-color: #d00;
    border-radius: 6px;
  }
  .top:hover a{
    color: #fff;
  }
  .top:hover span{
    background-color: #fff;
    color: #d00;
  }
  .top:hover .star{
    right:150px;
    top: 0;
    font-size: 14px;
    color: #ff0;
    transform: rotate(1080deg);
  }
  .top span{
    position: absolute;
    top:2px;
    right: 40px;
    width: 18px;
    height: 18px;
    font-weight: bold;
    border-radius: 9px;
    line-height: 18px;
    text-align: center;
    font-size: 12px;
    font-weight: border;
    color: #fff;
  }
  .star{
    color: #fff;
    font-size: 48px;
    font-style: normal;
    position: absolute;
    right:530px;
    top:186px;
    transform: rotate(60deg);
    transition: all .3s ease;
  }
  .on{
    background-color: #e00;
  }
  .list{
    margin: 20px 20px;
    padding: 36px 0;
    list-style: none;
  }  
  a{
    display: block;
    color: #757575;
    text-decoration: none;
  }
  .list li{
    float: left;
    height: 246px;
    width: 234px;
    padding: 10px 0 20px;
    margin-right:12px;
    margin-top: 20px;
    border: 1px solid #ccc;
    background: #fff;
    -webkit-transition: all .2s linear;
    transition: all .2s linear;
  }
  .list li:hover{
    box-shadow: 2px 4px 5px #aaa;
  }
  .figure{
    width: 150px;
    height: 150px;
    margin: 0 auto 18px;
  }
  .title{
    color: #222;
    font-size: 14px;
    font-weight: normal;
    text-align: center;
  }
  .price{
    margin: 0 10px 10px;
    text-align: center;
    color: #ff6700;
  }
  .cart{
    margin: 0 15px 5px;
    text-align: center;
  }
  .cart a{
    color: #a34;
    width: 190px;
    height: 24px;
    border-radius: 4px;
    margin: 0 8px 5px;
    text-align: center;
  }
  .cart a:hover{
    color: #eee;
    box-shadow: 0 2px 1px #333,0 2px 1px #666;
    background-color: #ccc;
    background-image: linear-gradient(#33a6b8,#0089a7)
  }
  .num{
    text-align: center;
    color: #ff6700;
  }
  </style>
</head>
<body>
  <section>
  <p class='top'>
  <a href="spcar.php" rel="external nofollow" >我的購物車</a><span class="<?php echo $class;?>"><?php echo $sum;?></span>
  <em class='star'>★</em>
  </p>
  <ul class="list">
  <?php foreach ($arrPro as $key => $value):?>
  <li>
    <p class="figure"> 
    <a href=""><img src=" rel="external nofollow" <?php echo $value['img'];?>" width="150" height="150" alt="小米移動電源5000mAh"></a> 
    </p> 
    <h4 class="title"> 
    <a href=""><?php echo $value['title'];?></a>
    </h4> 
    <p class="price"><span class="num">￥<?php echo $value['price'];?></span></p>
    <p class='cart'><a href="action.php?id=<?php echo $value['id'];?>" rel="external nofollow" >加入購物車</a></p>
  </li>
  <?php endforeach;?>
  </ul>
  <p style='clear:both'></p>
  </section>
</body>
</html>

action.php

<?php
if(!empty($_GET['id'])){
  require 'common.php';
  session_start();
  $id = $_GET['id'];
  //把所選ID的商品信息遍歷出來
  foreach ($arrPro as $key => $value) {
    if($id == $value['id']){
    $arrData = $arrPro[$key];
    }
  }

  //用一個新的二維數組把商品信息存起來
  $arrDatax[0][$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;
  //判斷是否有SESSION存在，有則在數組后添加，沒有則直接存
  if(empty($_SESSION['shopcar'])){
    $_SESSION['shopcar'] = $arrDatax;
    header('Location:index.php');
  }else{
    //第一次購物之后的購物
    //重新取出來，防止數據覆蓋
    $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 "購物車沒有商品!";
}

spcar.php

<?php
if(!empty($_GET['id'])){
  require 'common.php';
  session_start();
  $id = $_GET['id'];
  //把所選ID的商品信息遍歷出來
  foreach ($arrPro as $key => $value) {
    if($id == $value['id']){
    $arrData = $arrPro[$key];
    }
  }

  //用一個新的二維數組把商品信息存起來
  $arrDatax[0][$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;
  //判斷是否有SESSION存在，有則在數組后添加，沒有則直接存
  if(empty($_SESSION['shopcar'])){
    $_SESSION['shopcar'] = $arrDatax;
    header('Location:index.php');
  }else{
    //第一次購物之后的購物
    //重新取出來，防止數據覆蓋
    $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 "購物車沒有商品!";
}

delete.php

<?php
session_start();
if(!empty($_GET['id'])){
  $arrData = $_SESSION['shopcar'];
  //判斷對應的商品ID信息
    if(in_array($_GET['id'],$arrData[0])){
      unset($arrData[0][$_GET['id']]);
      unset($arrData[1][$_GET['id']]);
      unset($arrData[2][$_GET['id']]);
      unset($arrData[3][$_GET['id']]);
      unset($arrData[4][$_GET['id']]);
      $_SESSION['shopcar'] = $arrData;
    }
    header('Location:spcar.php');
}

以上是PHP中session實現購物車功能的案例的所有內容，感謝各位的閱讀！相信大家都有了一定的了解，希望分享的內容對大家有所幫助，如果還想學習更多知識，歡迎關注億速云行業資訊頻道！

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