我想通过创建一个股票组合来学习php和javascript。我想要做的是自动更新表格的价格单元,而不使用JavaScript刷新页面。我创建了一个新的php文件来获取组合的价格字段,但我似乎无法使其工作。我在价格领域遇到很多错误。我已将所有文件放在这里pastebin。任何帮助,将不胜感激。 只传递一个值到php文件
portfolio.php file
<table class="table table-hover center-table table-bordered">
<tr>
<th>Symbol</th>
<th>Name</th>
<th>Shares</th>
<th>Price</th>
<th>Total</th>
</tr>
<?php foreach ($shares as $row): ?>
<tr>
<td><?= $row["symbol"]?></td>
<td><?= $row["name"]?></td>
<td><?= $row["shares"]?></td>
<td id="price">$<?= number_format($row["price"],2)?></td>
<td>$<?= number_format($row["total"],2)?></td>
</tr>
<? endforeach ?>
<tr>
<td>CASH</td>
<td></td>
<td></td>
<td></td>
<td>$<?= number_format($cash[0]["cash"], 2)?></td>
</tr>
</table>
<script type="text/javascript" src="js/update.js" ></script>
index.php文件
<?php
// configuration
require("../includes/config.php");
//query user's portfolio
$rows = query("SELECT * FROM shares WHERE id = ?", $_SESSION["id"]);
$cash = query("SELECT cash FROM users WHERE id = ?", $_SESSION["id"]);
//create array to store the shares
$shares = [];
//for each of the user info
foreach($rows as $row){
//lookup stock info
$stock = lookup($row["symbol"]);
if($stock !== false){
$shares[] = [
"name" => $stock["name"],
"price" => $stock["price"],
"shares" => $row["shares"],
"symbol" => $row["symbol"],
"total" => $row["shares"]*$stock["price"]
];
//dump($shares);
}
}
// render portfolio
render("portfolio.php", ["shares" => $shares,"cash" => $cash, "title" => "Portfolio"]);
?>
update.php
<?php
require("../includes/functions.php");
require("../includes/config_update.php");
$rows = query("SELECT * FROM shares WHERE id = ?", $_SESSION["id"]);
$cash = query("SELECT cash FROM users WHERE id = ?", $_SESSION["id"]);
//create array to store the shares
$shares = [];
//for each of the user info
foreach($rows as $row){
$stock = lookup($row["symbol"]);
if($stock !== false){
$shares[] = [
"name" => $stock["name"],
"price" => $stock["price"],
"shares" => $row["shares"],
"symbol" => $row["symbol"],
"total" => $row["shares"]*$stock["price"]
];
}
}
// render portfolio
render("portfolio.php", ['shares' => $shares, 'cash' => $cash]);
?>
update.js
$(document).ready(function(){
var updater = setTimeout(function(){
$('#price').load('update.php', 'update=true');
},6);
});
当我运行此我首先得到整个标签le在价格单元以及这些错误消息注意:未定义的变量:份额portfolio.php行10 提供的foreach()在portfolio.php第10行中的无效参数 未定义变量现金在portfolio.php在行31
我不再有任何错误,但现在我得到整个页面在表格中的价格字段。
请编辑的问题,并张贴一些代码,你有任何错误消息。 – Jess 2013-03-27 15:56:13
请勿使用jsFiddle或pastebin等外部服务托管您的代码。代码出现在问题中,然后你可以用一个工作示例来补充你的问题。 – meagar 2013-03-27 16:00:09
对不起。用问题发布代码。 – tironci 2013-03-27 16:08:59