PHP，Javascript和SQL代码混淆了 [英] PHP , Javascript and SQL code mix up

问题描述

您好我有这个代码将从数据库中提取客户端名称和地址。
它将每个条目的客户名称输入到下拉列表中（< option value =<？php echo$ client？>><？php echo $ client？>< / option> ）这是在while循环中完成的。
然后我有一个Javascript，当你在下拉列表中选择一个选项时，它将改变名为'content'的DIV的innerHTML - 这是基于从数据库中提取的内容而言是唯一的。 - 这是我无法工作的地方..以下是我的代码，非常感谢任何帮助。

Hi I have this code that will pull the client name and address from the database. It echo's out the client name for each entry into a dropdown (<option value="<?php echo "$client" ?>"><?php echo "$client" ?></option>) which is done in a while loop. Then i have a Javascript that will change the innerHTML of a DIV named 'content' when you select a option in the dropdown - this is unique based on what is pulled from the database. - This is where I can't get it to work.. below is my code any help is much appreciated.

<div id="selectBox">
<div class="ui-widget">
<form>
    <label>Select a Client:</label>
    <select id="combobox" >
    <option value="">Select...</option>
    <?php

include "db_conn.php";

callDB();   

function callDB(){      
$sql = 'SELECT * FROM clientlist';
   $query = mysql_query($sql) or die(mysql_error());
   while ($row = mysql_fetch_array($query))
          {
       $ID= $row['id'];
       $client= $row["client"];
       $postal_add= $row["postal_add"];
?>

<option value="<?php echo "$client" ?>"><?php echo "$client" ?></option>
        <?php
}} ?>
    </select>
    </form>
</div>
</div>
<br>
<div id="content">

</div>
</div>
<script type="text/javascript">



// Script for changing Div
function change()
{
switch (document.getElementById("combobox").value)
{
  case "<?php echo $client ?>":
  document.getElementById("content").innerHTML = "<h2><?php echo $client ?></h2><b>Postal Address:</b> <?php echo $postal_add ?>"
  break;

}
}

</script>

推荐答案

到Javascript执行时（客户端）， PHP已经完成（服务器）。您需要在While-Loop中从PHP构建Javascript，然后在页面中稍后将其发送到浏览器：

By the time the Javascript is executed (Client), PHP already finished (Server). You will need to build the Javascript from PHP inside the While-Loop and send it to the browser later in the page:

// in while
$javascript .= "case $client:
document.getElementById('content').innerHTML = '<h2>$client</h2>
    <b>Postal Address:</b>$postal_add'
break;"

// later in page
switch (document.getElementById("combobox").value)
{    
<?php echo $javascript; ?>
}

这篇关于PHP，Javascript和SQL代码混淆了的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！