Preserving form values between page loads

Hi,

Can anyone please help me with the following problem that i am having?
Basically i have a form containing Few fields like name age country,state. After Filling the name , age and i selecting Drop down box of country the auto select of state is changes the value based on country. when it changes the page is refreshed and all information above in name ,age is disappred. can any one tel me how to preserve those values ?

Jun 8 '07 #1

Subscribe Post Reply

1655

ak1dnar

1,584

Expert 1GB

[PHP]<?php
if(($_POST['check']) && ($_POST['txt_filed'])!=""){
$value = $_POST['txt_filed'];
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
</head>

<body>
<form action="<?php $PHP_SELF?>" method="post">
<input name="txt_filed" type="text" value="<?=$value?>" />
<input name="check" type="submit" />
</form>
</body>
</html>[/PHP]

Jun 8 '07 #2

Purple

404

Expert 256MB

[PHP]<?php
if(($_POST['check']) && ($_POST['txt_filed'])!=""){
$value = $_POST['txt_filed'];
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
</head>

<body>
<form action="<?php $PHP_SELF?>" method="post">
<input name="txt_filed" type="text" value="<?=$value?>" />
<input name="check" type="submit" />
</form>
</body>
</html>[/PHP]

I would suggest the following as a replacement or $value will be undefined on the first pass of the form or if the field is empty..

<?php
if(($_POST['check']) && ($_POST['txt_filed'])!="") $value = $_POST['txt_filed'];
else $value = null;
?>

Jun 8 '07 #3

pbmods

5,821

Expert 4TB

Changed thread title to better describe the problem.

Jun 8 '07 #4

Similar topics

Preserving state

by: Karl | last post by:

This might not really be a javascript question, but I'll start with this group. At http://www.gazingus.org/ there is a very nice collapsible menu written using CSS and Javascript >>>> Using...

Javascript

Recordset in subform based on field in parent form

by: Lyn | last post by:

Hi, I am working on a genealogy form. The only table (so far) lists everybody in the family, one record per person. Each record has an autonum ID. The parent form (frmMainForm) displays the...

Microsoft Access / VBA

integral promotion, arithmetic conversion, value preserving, unsigned preserving???

by: TTroy | last post by:

Hello, I'm relatively new to C and have gone through more than 4 books on it. None mentioned anything about integral promotion, arithmetic conversion, value preserving and unsigned preserving. ...

C / C++

Page Load event, Request Form, and controls

by: Frank 'Olorin' Rizzi | last post by:

Hello everyone. This is quite convoluted, but I'll try to make it simple. I have a couple of bottom-line questions (I guess): 1~ what happens between the Page_Load routine in the code behind...

ASP.NET

bulk insert - form collections for novice

by: Sean | last post by:

HI There, I am making the transition from asp to asp .net, I am currenty writing an application that requires a bulk insert from a webform into SQL server, normally I would just create rows of...

ASP.NET

Server.Transfer To Same Page Not Preserving Control Values

by: Pete | last post by:

Hi all... I sincerly hope one of the MS guys can clear this up for me... First some background... Ok, I have a web site which is fully translatable into several languages. All the strings...

ASP.NET

Preserving Viewstate on form reload from a popup

by: jeffrobbins | last post by:

Hello, I am having an issue that I haven't been able to find an answer for. Any help or pointers to information would be appreciated. I have a form, lets call it mainForm, that contains a...

ASP.NET

enctype=multipart/form-data on destination page, originating page, or both?

by: pbd22 | last post by:

hi. could somebody tell me, when uploading a file, i know the form where the upload component is must have enctype=multipart/form-data but, is the same true for the form with the server code to...

ASP.NET

Sign preserving Vs value preserving

by: sophia.agnes | last post by:

Dear all, I was going through the book "C a software engineering approach by darnell & Margolis" there was a section named sign preserving vs value preserving it is as follows sign...

C / C++

How to turn on java script in a villaon keypad mobile phone

by: Charles Arthur | last post by:

How do i turn on java script on a villaon, callus and itel keypad mobile phone

Java

Merging data from multiple Excel files

by: ryjfgjl | last post by:

In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...

Data Management

Migrating Website to Cloud - Emmanuel Katto

by: emmanuelkatto | last post by:

Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud. Please let me know. Thanks! Emmanuel

General

Navigating the Data Structures and Algorithms (DSA)

by: BarryA | last post by:

What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...

Algorithms / Advanced Math

Looking to do Android software development, any suggestions? Is flutter better?

by: nemocccc | last post by:

hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?

General

How to build RAID in BIOS?

by: Hystou | last post by:

There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...

Computer Hardware

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

by: jinu1996 | last post by:

In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...

Online Marketing

The easy way to turn off automatic updates for Windows 10/11

by: Hystou | last post by:

Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...

Windows Server

AI Job Threat for Devs

by: agi2029 | last post by:

Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing,...

Career Advice