Question

我正在编写一个迷你网络项目来了解php / html / java。我编码的页面包含一个使用php代码的表。这个PHP代码允许我连接到我的数据库并获取我想在表中显示的值。然后我有一个选择框返回所选字段的值（通过javascript？）。必须使用此值刷新php表。所以必须将值发送到php代码（通过Ajax？）并刷新我对我的数据库的查询，以便表格显示新的值。这是我现在的情况：

<html>  
<head>  
<title>Test</title>  
<style type="text/css">
body {
    background-color: #9C3;
}
p {color:black;}
.table_test {
    font-family: Constantia, Lucida Bright, DejaVu Serif, Georgia, serif;
}
</style>
</head>
<body><div align='center'>
<p>&nbsp;</p>
<p>test!</p>
<p>&nbsp;</p>
<div class="table_test">  
  <table border='1' cellpadding='0' cellspacing='0' width='600' bgcolor='#F6F6F6' bordercolor='#FFFFFF'>  
    <tr>  
      <td width='150' style='font-weight: bold'></td>
      <td width='150' style='font-weight: bold'>Festa</td> 
      <td width='150' style='font-weight: bold'>Preu</td>  
      <td width='150' style='font-weight: bold'>Entrada</td>
      <td width='150' style='font-weight: bold'>Final</td>
      <td width='150' style='font-weight: bold'>Estil</td>
      <td width='150' style='font-weight: bold'>Llista</td>  
    </tr>

<?php

    include ('connection.php');
    include ('functions.php');

    $dw = date("w");
    echo "Avui es el dia: $dw";

    $query = 'SELECT disco_id, party_name, price, hin, hout, style, list FROM disco_var WHERE day = '.$dw;
    $result = mysql_query($query,$connect);

    while ($reg = mysql_fetch_array($result))
    {
        $disco_id = $reg['disco_id'];
        $disco_name = get_disco_name_from_id($disco_id);
        $hin = substr($reg['hin'],0,5);
        $hout = substr($reg['hout'],0,5);
        $price = $reg['price'];
        if ($reg['list'] == 1) $list = "Apunta't!";
        else $list = "-";

        echo "<tr>  
             <td width='150'>".$disco_name."</td>  
             <td width='150'>".$reg['party_name']."</td>  
             <td width='150'>".$reg['price']." e</td>
             <td width='150'>".$hin."</td>
             <td width='150'>".$hout."</td>
             <td width='150'>".$reg['style']."</td> 
             <td width='150'>".$list."</td>
             </tr>";
    } 

    include ('close_connection.php'); 
?> 

  </table>

</div>
<p>Veure un altre dia de la setmana:
  <select name="day_select" id="day_select" onchange="dayChanged(this);">
    <option value="1">Dilluns</option>
    <option value="2">Dimarts</option>
    <option value="3">Dimeces</option>
    <option value="4">Dijous</option>
    <option value="5">Divendres</option>
    <option value="6">Dissabte</option>
    <option value="0">Diumenge</option>
  </select>
</p>
<script type="text/javascript"> //Here is the problem!!
    function dayChanged(opt)
    {
    //What should be the code here?
    }
</script>
</body>  
</html>

所以我希望php $ dw中的de var能够通过选择框（onClick函数）中选择的选项的值进行刷新。那么另一个问题是如何用这个$ dw值刷新表。

我是php / html / java编码的新手，我真的很喜欢它。谢谢。

如何通过javascript获取var刷新php表

0 个答案: