php 購物車的簡單實現代碼與樣本

session_start(); $conn=mysql_connect("localhost","root","admin"); mysql_select_db("songyu"); //檢查數組元素出現次數 function check_count($array,$element) { $times=0; for($i=0;$i { if($element==$array[$i]) { $times++; } } return $times; } if(isset($_GET["p_id"])) { $p_id=$_GET["p_id"]; } $total_price=0; array_push($_SESSION["cart"], $p_id); $cart=$_SESSION["cart"]; echo "your cart: "; $new_array=array_count_values($cart); foreach ($new_array as $key => $value) { $sql="select * from product where id='".$key."'"; $result=mysql_query($sql); $out=mysql_fetch_array($result); echo $out[name]."---個數:".$value."--".($out[price]*$value)." "; $total_price=$total_price+($out[price]*$value); } echo " "; echo "-----------總價-------------- "; echo $total_price; ?> 回s 複製代碼 2、login.php 登入頁 if(isset($_SESSION["user"])) { unset($_SESSION["user"]); } if(isset($_SESSION["cart"])) { unset($_SESSION["cart"]); } ?> 複製代碼 3、product.php 產品頁 session_start(); $conn=mysql_connect("localhost","root","admin"); mysql_select_db("songyu"); $sql_product="select * from product"; $res=mysql_query($sql_product); if(!isset($_SESSION["cart"])) { $_SESSION["cart"]=array(); } while($out2=mysql_fetch_array($res)) { echo "".$out2[name]." "; echo $out2[price]." "; echo ""; } ?> 複製代碼 4、product_index.php 產品索引頁 $conn=mysql_connect("localhost","root","admin"); mysql_select_db("songyu"); $sql="select * from user where username='".$_POST["username"]."' and password='".$_POST["password"]."'"; $result=mysql_query($sql); $out=mysql_fetch_array($result); //bbs.it-home.org if(!$out) { echo "wrong!"; } else { $_SESSION["user"]=$out[id]; echo ""; } ?> 複製代碼

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