Gettin HTML control using PHP

lekkie

The problem is,
I can't seem to get the value of voucher form in the javascript code to a php variable.
why is that?

Can anybody help?


<script language="JavaScript" type="text/JavaScript">
function MM_reloadPage(init) {  //reloads the window if Nav4 resized
 if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
   document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
 else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function validateform(formobject)
{
//Check for Empty Voucher
if (formobject.voucher.value == "")
{
 window.alert("Type your Voucher name, Please!");
 formobject.voucher.focus();
 formreturnvalue = false;
 return formreturnvalue;
}

   if (formobject.voucher.value != "")
   {
       <?php
       // connect to database
       include 'db.php';
//**********Problem is Here *****************************
       $v = $_POST['voucher']; //The expected variable is not showing up, it shows blank.
       ?>
       window.alert(<?php echo $v;?>);

   if (VoucherStatus == "Used")
   {
   //window.alert(VoucherStatus);
   formreturnvalue = false;
 return formreturnvalue;
 }
 formreturnvalue = true;
 return formreturnvalue;  

   }
}


</script>

if ((!isset($_POST['registersubmit'])))
   {//
     ?>
             <form name="myform" action="<?php echo $_SERVER['PHP_SELF']?>" method="POST">
               <br>
                   <td align="left"><font color="#FFFFFF" size="2" face="Arial, Helvetica, sans-serif">Voucher No.</font></td>
                   <td><font color="#FFFFFF" size="2" face="Arial, Helvetica, sans-serif">
                     <input type="text" name="voucher">

<?php
   }  

   else
   {
       //Save Customer info to database here
                  // SaveContact();

   //Send Ringtone here    
  // SendRingTone();
   ?>

umrguy

While I'm not sure the best way to solve your problem, I can tell you why the problem is there. Since the page has not been 'sent' to the server, the variables for POST and GET have not been recieved by the PHP code. I would suggest that you embed PHP code inside of your first JavaScript that would assign the return value to a PHP variable, and then use that variable instead of using the POST method. The value from the form is not registered until after the JavaScript has succesfully completed, so it is not available through POST or GET until then.

Weedpacket

Stuck to the top of the list of threads in this forum is a thread called "Collected solutions to common problems". Have a look at it.

lekkie

Hi guys, this is the exact problem.

I have a form which I wanna pass the variable to a php script. I know variables are not passed to server side scripts unless a page is posted or reloaded.

But I dunno, if anybody has a way of going around this- there are always ways to go around issues😃 it's just dat I anit opportuned to know this.

🙂)And I really need your help.

<html>
<head>
<title>Welcome to Vibe Downloads.com</title>
<script src="xmlhttp.js"></script>

<script language="JavaScript" type="text/JavaScript">

function validateform(formobject)
{
	var formreturnvalue = true;

//Check for Empty Voucher
if (formobject.voucher.value == "")
{
	window.alert("Type your Voucher name, Please!");
	formobject.voucher.focus();
	formreturnvalue = false;
	return formreturnvalue;
}

if (formobject.voucher.value != "")
{
    <?php
    // connect to database
   include 'db.php';

   //*************Problem is here *******************
   // I wanna pass the value of the HTML form voucher to my PHP script for processing
   $v = $_POST['voucher']; //I think voucher will still be empty cos page has not yet being posted, Is there another way around this?
   ?>

   window.alert("<?php echo $v;?>");

    <?php
    $res = mysql_query("SELECT Voucherno FROM Vouchers WHERE Voucherno = '$v' AND VoucherStatus = Used");

    if (mysql_num_rows($res) > 0)
       {
          $VoucherStatus = 'Used';
       }
    else
       {
          $VoucherStatus = 'Invalid';
       }
    mysql_close($link);
    ?>

    var VoucherStatus = "<?php echo $VoucherStatus;?>";

    if (VoucherStatus == "Used")
    {
    //window.alert(VoucherStatus);
    formreturnvalue = false;
	return formreturnvalue;
	}
	if (VoucherStatus == "Invalid")
    {
    window.alert(VoucherStatus);
    formreturnvalue = false;
	return formreturnvalue;
	}
	formreturnvalue = true;
	return formreturnvalue;		
}

return formreturnvalue;
}
</script>

</head>
<center>
<body >

<?php

			if ((!isset($_POST['registersubmit'])))
			{//
		   ?>
          <form name="myform" action="<?php echo $_SERVER['PHP_SELF']?>" method="POST">
            <br>
            <table>                  
              <tr>
                <td align="left"><font color="#FFFFFF" size="2" face="Arial, Helvetica, sans-serif">Voucher No.</font></td>
                <td><font color="#FFFFFF" size="2" face="Arial, Helvetica, sans-serif">
                  <input type="text" name="voucher">
                </font></td>
              </tr>
              <tr align="center">
                <td colspan="2"><font size="2" face="Arial, Helvetica, sans-serif"><br>
                      <input name="registersubmit" type="submit" value="Register" onClick="return validateform(myform)">
&nbsp;
        <input name="reset" type="reset" value="reset">
                    </font></td>
                  </tr>
                </table>
              </form>
 <?php
				}			
				else
				{
				    //Save Customer info to database here
                   // SaveContact();

			    //Send Ringtone here				
			   // SendRingTone();
			    ?>
</table>
  </body>
</center>
</html>

Weedpacket

I wonder if the wall will answer me back today?

lekkie

Never mind guyz, I got my way around this.

I used the httpxml post method to pass it to a php file and used an hidden form to pass it back to my form. If anybody is interested with the soln u can signify by making it known on this post.

I will be glad to post it.

Thnx to everybody😃

Weedpacket

Feel free; I might add it to the list of collected solutions to this common problem.