0
<?php 

session_start();
include("connection.php");

$id=$_SESSION['id'];
?>


<!DOCTYPE html>

<html class="beautiful  js " xml:lang="en" lang="en">
<head>
  <link href="120gb_files/index_packaged.css" media="screen" rel="stylesheet" type="text/css">
<title>mackbook_how to find</title>
</head>
<body>
<form method="post">
     <div class="box">

        <div class="button">

<select id="screen_size" class="fancy" style="border:1px solid #ccc;" >
<option selected="selected" value="">Screen Size</option>
<?php 
        $sql="select * from `mackbook`";
        $result=mysql_query($sql);
        while($row=mysql_fetch_array($result))
        {
?>
<option data-id="965" value="<?php echo $row['screen_size'];?>"><?php echo $row['screen_size'];
$_SESSION['size']=$row['screen_size'];

?></option>
<?php }?>
</select>
        </div>
         <div class="button" style="margin-top:50px;">

       <select id="processor" class="fancy" style="border:1px solid #ccc;display:none">
<option selected="selected" value="">Processor</option>
<?php 

$sql="select * from `mackbook`";
        $result=mysql_query($sql);
while($row=mysql_fetch_array($result))
        {

?>
<option data-id="970" value="<?php echo $row['processor']?>"><?php echo $row['processor'];
    $_SESSION['processor']=$row['processor'];

?></option>
<?php }?>
</select>
        </div>

        <div class="button" style="margin-top:50px;" >
        <select id="hard_drive" class="fancy" style="border:1px solid #ccc;display:none">

<option selected="selected" value="">Hard Drive</option>
<?php 
$sql="select * from `mackbook`";
        $result=mysql_query($sql);
while($row=mysql_fetch_array($result))
        {
 ?>
<option data-id="993" value="<?php echo $row['hard_drive']?>"><?php echo $row['hard_drive'];
$_SESSION['hard_drive']=$row['hard_drive'];

?></option>
<?php }?>

</select>
        </div>
       <div class="button" style="margin-top:20px;" >
      <a href="offer.php?id=<?php echo $id;?>" style="text-decoration:none;" target="_top"><input type="button" value="Next" class="next" style="display:none"/></a>
       </div>
     </div>  
  <div class="top_notify">

  <div class="container"></div>
</div>
  <div style="height:auto;" id="stacks_content" class="macbook">
 <div style="display: block; float:right;" id="help_floater"><h3> How to find your processor speed and screen size </h3>
<div class="content">
  <div class="section">
    <h4> Step 1 </h4>
    <p> Turn the computer on and the go to the &gt;About this Mac </p>
    <img src="120gb_files/laptop_help_step1_original.png" alt="laptop-help-step1">
    <div class="clear"></div>
  </div>
  <div class="section">
    <h4> Step 2 </h4>
    <p> Turn the computer on and the go to the &gt;About this Mac </p>
    <img src="120gb_files/laptop_help_step2_original.png" alt="laptop-help-step2">
    <div class="clear"></div>
  </div>
  <div style="clear:both"></div>
  <div class="section">
    <h4>  <br/>Step 3 </h4>
    <p> Turn the computer on and the go to the &gt;About this Mac </p>
    <img src="120gb_files/laptop_help_step4_original.png" alt="laptop-help-step3">
    <div class="clear"></div>
  </div>
</div>
</div>
</div>
</div>
</form>
</body>
</html>

what i have to done is that their are three select box 2 select box are hide when page lode first when i select value from first drop down 2nd drop down will shoe and when select value from 2nd drop down 3rd drop down show and when selecting value from thidr drop down submit button will be shown i use some java script and jquery but not get the proper solution because value in drop down comes from database any one have any idea about this please help me out thanx in advance.

3
Contributors
3
Replies
12
Views
4 Years
Discussion Span
Last Post by AARTI SHRIVAS
0

You need to use JavaScript and possibly AJAX to make this work. You need to put an "onChange" event on each drop down box so that the page reacts to the drop down box being changed. Do you have any JavaScript knowledge?

0

There are two main approaches that I'd consider. As JC suggests - the Ajax approach, creating interactive and dynamic funcationality, where js events get info from the server each time via ajax call. Another would be to do everything via js. This is only feasible for relatively small datasets which are static (do not rely upon data in tables that are updated often).

If you go down the Ajax route, I'd suggest jQuery as this simplifies requests and responses. The second method gets ALL the data from the DB in a php array on page load and converts it to json format to place into a js variable. The page then just calls on the json data, avoiding a round trip to the server on every action. This method, it must be said is not suitable for more complicated data or large amounts of data, but for trivial aspects such as updating dropdowns, it may be useful.

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