关于php实现添加购物车功能,具体代码如下所示:
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" > <html xmlns= "http://www.w3.org/1999/xhtml" > <head> <meta http-equiv= "Content-Type" content= "text/html; charset=utf-8" /> <title>无标题文档</title> </head> <body> <h1>商品列表</h1> <table width= "100%" border= "1" cellpadding= "0" cellspacing= "0" > <tr> <td>水果代号</td> <td>水果名称</td> <td>水果价格</td> <td>水果产地</td> <td>水果库存</td> <td>操作</td> </tr> <?php session_start(); include ( "../fengzhuang/DBDA.class.php" ); $db = new DBDA(); $sql = "select * from fruit" ; $arr = $db ->Query( $sql ); foreach ( $arr as $v ) { echo "<tr> <td>{ $v [0]}</td> <td>{ $v [1]}</td> <td>{ $v [2]}</td> <td>{ $v [3]}</td> <td>{ $v [4]}</td> <td><a href= 'add.php?ids={$v[0]}' >加入购物车</a></td> </tr>"; } ?> </table> <?php var_dump( $_SESSION [ "gwc" ]); ?> </body> </html> |
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" > <html xmlns= "http://www.w3.org/1999/xhtml" > <head> <meta http-equiv= "Content-Type" content= "text/html; charset=utf-8" /> <title>无标题文档</title> </head> <body> <h1>购物车详情</h1> <table width= "100%" border= "1" cellpadding= "0" cellspacing= "0" > <tr> <td>水果代号</td> <td>购买数量</td> <td>操作</td> </tr> <?php session_start(); $arr = array (); if (! empty ( $_SESSION [ "gwc" ])) { $arr = $_SESSION [ "gwc" ]; } foreach ( $arr as $v ) { echo "<tr> <td>{ $v [0]}</td> <td>{ $v [1]}</td> <td></td> </tr>"; } ?> </table> </body> </html> |
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<?php session_start(); $ids = $_GET [ "ids" ]; /*$arr = array( array("k001",10), array("k002",2), array("k003",5) );*/ //1.第一次点击添加购物车 //2.如果购物车中没有该商品 //3.如果购物车中有该商品 if ( empty ( $_SESSION [ "gwc" ])) { //1.第一次点击添加购物车 $arr = array ( array ( $ids ,1) ); $_SESSION [ "gwc" ]= $arr ; } else { //不是第一次点击 //判断购物车中是否存在该商品 $arr = $_SESSION [ "gwc" ]; $chuxian = false; foreach ( $arr as $v ) { if ( $v [0]== $ids ) { $chuxian = true; } } if ( $chuxian ) { //3.如果购物车中有该商品 /*foreach($arr as $v) { if($v[0]==$ids) { $v[1] = $v[1]+1; } }*/ for ( $i =0; $i < count ( $arr ); $i ++) { if ( $arr [ $i ][0]== $ids ) { $arr [ $i ][1]+=1; } } $_SESSION [ "gwc" ] = $arr ; } else { //2.如果购物车中没有该商品 $asg = array ( $ids ,1); $arr [] = $asg ; $_SESSION [ "gwc" ] = $arr ; } } header( "location:main.php" ); |
以上所述是小编给大家介绍的PHP实现添加购物车功能,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持!
原文链接:http://www.cnblogs.com/jc535201285/archive/2017/03/06/6508829.html