【发布时间】：2013-08-21 15:06:41
【问题描述】：
我正在尝试刷新我拥有的表，因为其中的变量会不断更新，我想每隔几秒钟重新更新一次这些变量。我已经通过给表一个 id 并为其创建一个 div 来完成我的代码。该代码将解释我实际上是什么。提前致谢 ！ 已编辑：添加了 Var Table 和 Var Refresher。但是代码仍然不会重新加载我的表！有什么想法吗？？
Test.php
<html>
<head>
<script type='text/javascript'>
var table = $('#tableID');
// refresh every 5 seconds
var refresher = setInterval(function() {
table.load("1103242B/processing/js.php");
}, 5000);
setTimeout(function() {
clearTimeout(refresher);
}, 1800000);
</script>
</head>
<body>
<?php include_once'js.php'; ?>
</body>
</html>
JS.php
<?php
require_once 'connect.php';
include 'start.php';
include 'functions.php';
header("Cache-Control: no-cache,no-store");
$query = "SELECT * FROM opentrades"; //You don't need a ; like you do in SQL
$result = mysql_query($query);
echo "<table border = '1px' id='tableID'>"; // start a table tag in the HTML
echo "<tr><td>" . "Order Number" . "</td><td>" . "Selection" . "</td><td>" . "Date" . "</td><td>" . "Type" . "</td><td>" . "Size" . "</td><td>" . "Bid Price" . "</td><td>" . "Offer Price" . "</td><td>" ."Stop Loss" . "</td><td>" . "Take Profit" . "</td><td>" ."Profit/Loss(USD)"."</td><td>" ."Close"."</td></tr>" ; //$row['index'] the index here is a field name
while($row = mysql_fetch_assoc($result)){ //Creates a loop to loop through results
if ($row['selection']=='eur/usd')// TO RETRIEVE BID AND OFFER FOR EACH ROW
{
$bidpricepl=$bid;
$offerpricepl=$bid1;
}
elseif ($row['selection']=='usd/jpy')
{
$bidpricepl=$bid2;
$offerpricepl=$bid3;
}
elseif ($row['selection']=='usd/cad')
{
$bidpricepl=$bid4;
$offerpricepl=$bid5;
}
elseif ($row['selection']=='eur/jpy')
{
$bidpricepl=$bid6;
$offerpricepl=$bid7;
}
elseif ($row['selection']=='eur/chf')
{
$bidpricepl=$bid8;
$offerpricepl=$bid9;
}
elseif ($row['selection']=='gbp/usd')
{
$bidpricepl=$bid10;
$offerpricepl=$bid11;
}
elseif ($row['selection']=='aud/usd')
{
$bidpricepl=$bid12;
$offerpricepl=$bid13;
}
elseif ($row['selection']=='usd/chf')
{
$bidpricepl=$bid14;
$offerpricepl=$bid15;
}
if ($row['type']=="buy")
{
$minipipskiller='10';
$offeropen=$row['offerprice'];
$pips=$offerpricepl-$offeropen;
$closedb=$offeropen;
$pips1=round($pips, 6);
$pips2 = str_replace('.', '', $pips1);
if ($pips2<0)
{
$pips2 = str_replace('-', '', $pips2);
$pips2 = ltrim($pips2, '0');
$pips2 = -1 * abs($pips2);
}
else {
$pips2 = ltrim($pips2, '0');
}
$pips3=$pips2/$minipipskiller;
}// PIP COUNTING
elseif ($row['type']=="sell")//FOR PIP COUNTING
{
$minipipskiller='10';
$bidopen=$row['bidprice'];
$pips=$bidopen-$bidpricepl;
$closedb=$bidopen;
$pips1=round($pips, 6);
$pips2 = str_replace('.', '', $pips1);
if ($pips2<0)
{
$pips2 = str_replace('-', '', $pips2);
$pips2 = ltrim($pips2, '0');
$pips2 = -1 * abs($pips2);
}
else {
$pips2 = ltrim($pips2, '0');
}
$pips3=$pips2/$minipipskiller;
}
$ticksize= "0.0001";// FOR PROFIT AND LOSS
$lot1 = "100000";
$sizecalc=$row['size'] * $lot1;
if ($row['type']=="buy")
{
$profitandloss=$sizecalc*$ticksize*$pips3; //per TRADE
}
if ($row['type']=="sell")
{
$profitandloss=$sizecalc*$ticksize*$pips3; //per TRADE
}
$zero= '0';
if($profitandloss<$zero) {
$profitText = "<div style=\"color: red;\">$profitandloss</div>";
} elseif ($profitandloss>$zero) {
$profitText = "<div style=\"color: green;\">$profitandloss</div>";
}
$sum+= $profitandloss;
echo "<tr><td>" . $row['trade_id'] .
"</td><td>" . $row['selection'] .
"</td><td>" . $row['date'] .
"</td><td>" . $row['type'] .
"</td><td>" . $row['size'] .
"</td><td>" . $row['bidprice'] .
"</td><td>" . $row['offerprice'] .
"</td><td>" . $row['stoploss'] .
"</td><td>" . $row['takeprofit'] .
"</td><td>" . $profitText .
"</td><td><a href ='delete.php?id=".
$row['trade_id']."'>X</a>
</td></tr>";
$profitandloss=0;
if($sum<$zero) {
$sumText = "<div style=\"color: red;\">$sum</div>";
} elseif ($sum>$zero) {
$sumText = "<div style=\"color: green;\">$sum</div>";
}
}
echo "</table><br>";
?>
【问题讨论】：
-
将
setInterval替换为setTimeout。使用$("table.your-table").load()并简单地在js.php上回显表格的内容（！）（所以没有<table>的东西） -
你的错误到底在哪里？什么没有按预期工作？
-
表格中的动态变量不刷新..
-
只是猜测：响应可能被浏览器缓存。所以在你的 PHP 中你应该添加： header("Cache-Control: no-cache,no-store")
-
这里还有很多其他需要改进的地方。返回 HTML 很难看 - 使用 JSON 或 XML 之类的纯数据格式。也许有一天你想编写一个 iOS、Andoid 应用程序或任何其他本地客户端。那么 HTML 表格就没什么用了。如果是 HTML，永远不要直接指定边框或样式 - 使用 css。
标签： php javascript html sql ajax