[英]PHP Button href not working
For a school project I am trying to create a shoppingcart with php only with MySQLi. 对于一个学校项目,我试图用MySQL只用MySQL创建一个购物车。 For this I have a catalogue called index.php.
为此,我有一个名为index.php的目录。 In this is a table with the product and after every product there is a button which should add the item to the shoppingcart.
这是一个包含产品的表格,每个产品后面都有一个按钮,可以将商品添加到购物车中。
The only problem is that I cannot get the link working properly. 唯一的问题是我无法使链接正常工作。
<?php
session_start();
include 'connect.php';
$qry = "select * from products";
$result = mysqli_query($connect, $qry);
echo "<table class='catalogue'>";
echo "<tr><th>ID</th><th>Code</th><th>Name</th><th>Description</th><th>Image</th></th><th>Price</th><th>Buy</th></tr>";
while ($row = mysqli_fetch_array($result, MYSQLI_ASSOC)) {
echo "<tr><td>";
echo $row['id'];
echo "</td><td>";
echo $row['product_code'];
echo "</td><td>";
echo $row['product_name'];
echo "</td><td>";
echo $row['product_desc'];
echo "</td><td>";
echo $row['product_img_name'];
echo "</td><td>";
echo $row['price'];
echo "</td><td>";
echo "<input type='submit' value='Add' href='cart.php?id=['id']'/>";
echo "</td></tr>";
}
echo "</table>";
?>
The cart.php looks like this. cart.php看起来像这样。
<?php
session_start();
require 'connect.php';
require 'item.php';
$result = mysqli_query($connect, 'select * from products where id='.$_GET['id']);
$product = mysqli_fetch_object($result);
if(isset($_GET['id'])){
$item = new Item();
$item->id = $product->id;
$item->name = $product->product_name;
$item->price = $product->price;
$item->quantity = 1;
$_SESSION['cart'][] = $item;
}
echo "<table class='cart'>";
echo "<tr><th>ID</th><th>Name</th><th>Price</th><th>Quantity</th><th>Sub Total</th></tr>";
$cart = unserialize(serialize($_SESSION['cart']));
for($i=0; $i<count($cart); $i++){
echo "<tr><td>";
echo $cart[$i]->id;
echo "</td><td>";
echo $cart[$i]->product_name;
echo "</td><td>";
echo $cart[$i]->price;
echo "</td><td>";
echo $cart[$i]->quantity;
echo "</td><td>";
echo $cart[$i]->price * $cart[$i]->quantity;
echo "</td></tr>";
}
?>
Please forgive any other mistakes you might see, I am rather new to PHP. 请原谅你可能看到的任何其他错误,我对PHP很新。
Buttons don't have hrefs, anchors( <a>
) do, so using an anchor it would be 按钮没有hrefs,锚点(
<a>
),所以使用锚点就可以了
echo "<a href='cart.php?id=$row[id]'/>Add</a>";
you could always style it like a button if you want it to look like one. 如果你希望它看起来像一个按钮,你可以像按钮一样设置样式。
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