标记为已修复!!!
我在MySQL业务数据库中缺少vat_rate。这导致了两个问题。感谢Nytrix和Grimbode的快速和步行支持，非常感谢！ :)
我在第16行收到了未定义的索引问题...
<?php
class Business extends Application {
private $_table = 'business';
public function getBusiness() {
$sql = "SELECT * FROM `{$this->_table}`
WHERE `id` = 1";
return $this->db->fetchOne($sql);
}
public function getVatRate() {
$business = $this->getBusiness();
return $business['vat_rate'];
}
}
我该如何解决？感谢。
此外，当我点击我的添加到购物篮并从篮子链接中删除时，我收到了一个错误弹出窗口，这是从第13和14行的basket.js调用的。我不知道如何解决这个问题，但认为它可能与上述有关？
此致
编辑;以为我正确地完成了一个var_dump（？），这就是我写的时候为$ business显示的内容
<?php var_dump($business); ?>
在我的_header.php文件中回显数组（我说虽然没有知识！）。
注意：未定义的变量：/ users / ashleysmith / Documents / Website Tests / Z中的业务 - 来自此/ ecommerce / template / _header.php的第68行 NULL
据我所知，这里是所有相关代码......
Business.php
<?php
class Business extends Application {
private $_table = 'business';
public function getBusiness() {
$sql = "SELECT * FROM `{$this->_table}`
WHERE `id` = 1";
return $this->db->fetchOne($sql);
}
public function getVatRate() {
$business = $this->getBusiness();
return $business['vat_rate'];
}
}
basket_small_refresh.php
<?php
require_once("../inc/autoload.php");
$objBasket = new Basket();
$out = array();
$out['bl_ti'] = $objBasket->_number_of_items;
$out['bl_st'] = number_format($objBasket->_sub_total, 2);
$out['bl_vat'] = number_format($objBasket->_vat, 2);
$out['bl_total'] = number_format($objBasket->_total, 2);
echo json_encode($out);
basket_left.php
<div id="small_basket">
<?php $objBasket = new Basket(); ?>
<p class="your_bas">Your Basket</p>
<dl id="basket_left">
<dt>No. of items:</dt>
<dd class="bl_ti"><span><?php echo $objBasket->_number_of_items; ?></span></dd>
<dt>Sub-total:</dt>
<dd class="bl_st">£<span><?php echo number_format($objBasket->_sub_total, 2); ?></span></dd>
<dt>VAT (<span><?php echo $objBasket->_vat_rate; ?></span>%):</dt>
<dd class="bl_vat">£<span><?php echo number_format($objBasket->_vat, 2); ?></span></dd>
<dt>Total (inc):</dt>
<dd class="bl_total">£<span><?php echo number_format($objBasket->_total, 2); ?></span></dd>
</dl>
<p class="check_button">
<a href="/?page=basket">View Basket</a> |
<a href="/?page=checkout">Checkout</a>
</p>
</div>
basket.php
<?php
require_once('../inc/autoload.php');
if (isset($_POST['job']) && isset($_POST['id'])) {
$out = array();
$job = $_POST['job'];
$id = $_POST['id'];
$objCatalogue = new Catalogue();
$product = $objCatalogue->getProduct($id);
if (!empty($product)) {
switch($job) {
case 0:
Session::removeItem($id);
$out['job'] = 1;
break;
case 1:
Session::setItem($id);
$out['job'] = 0;
break;
}
echo json_encode($out);
}
}
Basket.php
<?php
class Basket {
public $_inst_catalogue;
public $_empty_basket;
public $_vat_rate;
public $_number_of_items;
public $_sub_total;
public $_vat;
public $_total;
public function __construct() {
$this->_inst_catalogue = new Catalogue();
$this->_empty_basket = empty($_SESSION['basket']) ? true : false;
$objBusiness = new Business();
$this->_vat_rate = $objBusiness->getVatRate();
$this->noItems();
$this->subtotal();
$this->vat();
$this->total();
}
public function noItems() {
$value = 0;
if (!$this->_empty_basket) {
foreach($_SESSION['basket'] as $key => $basket) {
$value += $basket['qty'];
}
}
$this->_number_of_items = $value;
}
public function subtotal() {
$value = 0;
if (!$this->_empty_basket) {
foreach($_SESSION['basket'] as $key => $basket) {
$product = $this->_inst_catalogue->getProduct($key);
$value += ($basket['qty'] * $product['price']);
}
}
$this->_sub_total = round($value, 2);
}
public function vat() {
$value = 0;
if (!$this->_empty_basket) {
$value = ($this->_vat_rate * ($this->_sub_total / 100));
}
$this->_vat = round($value, 2);
}
public function total() {
$this->_total = round(($this->_sub_total + $this->_vat), 2);
}
public static function activeButton($sess_id) {
if(isset($_SESSION['basket'][$sess_id])) {
$id = 0;
$label = "Remove From Basket";
} else {
$id = 1;
$label = "Add To Basket";
}
$out = "<a href=\"#\" class=\"add_to_basket";
$out .= $id == 0 ? " red" : null;
$out .= "\" rel=\"";
$out .= $sess_id."_".$id;
$out .= "\">{$label}</a>";
return $out;
}
}
basket.js
$(document).ready(function() {
function refreshSmallBasket() {
$.ajax({
url: '/mod/basket_small_refresh.php',
dataType: 'json',
success: function(data) {
$.each(data, function(k, v) {
$("#basket_left ." + k + " span").text(v);
});
},
error: function(data) {
alert("Error occured");
}
});
}
if ($(".add_to_basket").length > 0) {
$(".add_to_basket").click(function() {
var trigger = $(this);
var param = trigger.attr("rel");
var item = param.split("_");
$.ajax({
type: 'POST',
url: '/mod/basket.php',
dataType: 'json',
data: ({ id : item[0], job : item[1] }),
success: function(data) {
var new_id = item[0] + '_' + data.job;
if (data.job != item[1]) {
if (data.job == 0) {
trigger.attr("rel", new_id);
trigger.text("Remove From Basket");
trigger.addClass("red");
} else {
trigger.attr("rel", new_id);
trigger.text("Add To Basket");
trigger.removeClass("red");
}
refreshSmallBasket();
}
},
error: function(data) {
alert("Error occured");
}
});
return false;
});
}
});
答案 0 :(得分：0)
好的，所以您选择了*来自您的所有内容，并将表定义为$_table = "business"。你想选择＆＃39; vat_rate＆＃39; returnnd数组中可能不存在的列。在这里，您使用var_dump检查了您的阵列外观。如果您想知道如何从该数组中选择一个值，请查看文档：{{3}}或http://php.net/manual/en/language.types.array.php（更简单的解释）
答案 1 :(得分：0)
标记为固定!!!
我在MySQL业务数据库中缺少vat_rate。这导致了两个问题。感谢Nytrix和Grimbode的快速和步行支持，非常感谢！ ：）