Navigating to a new PHP page

[markyoung1984]

I have a PHP page called login and there is a function in there that (subject to certain conditions), I want to navigate to another PHP page automatically, as if clicking a href link.  I have no idea how to do this.  Can anyone help?

[sushant_d84]

Hi you can use

1) Redirection using header function

2) You can use the JavaScript for redirecting

3) You can use the include function for including next/other php page in current page.!!!

 

Try this and let me know whethere this works for you!?

 

Regards

Sushant Danekar

 

[markyoung1984]

Basically whats happening is the following:

- A user goes to adminctrl.php  This script checks if they are logged in using session variables.  If they are not logged in, the user is taken to login.html

- The user enters their details on login.html and clicks the LOGON button, which then calls the login.php script.

- The login.php script checks the database to validate they are a user (which all works).  If they are not a user the login.html is displayed again and the cycle repeats.  That is not a problem.  However, when they are a valid user, I want to go back to adminctrl.php

 

When I use header ("Location: adminctrl.php");  nothing happens, same with include_once.  Code in login.php that checks if the user can login to the database:

 

			$gateway = new DatabaseGateway($username, $password);  //form new db constructor

			$logonCheck = $gateway->attemptLogon(); //attempt to logon to the database

			if($logonCheck == 0)  //then login was successful
			{
				//echo ('Logon to database was successful');
				//I WANT THE ADMINCTRL.PHP TO LOAD HERE
			}
			else
			{
				echo ("You have not entered the correct username and password");
			}

 

However, when I uncomment the echo statement and use the header() function, I get the following:

 

Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\vdtwebexperimentation\login.php:23) in C:\xampp\htdocs\vdtwebexperimentation\login.php on line 24

 

I have no idea what is going on!  Please help.

[gnawz]

Hi

 

I wonder why you would want the user to go to adimctrl.php after successful log in, any way:

 

You can put a link for them to click on successful login

or (automatically) u can use HTML meta tags for redirecting the user.

get back if you get into trouble

 

 

[markyoung1984]

How could I have been so stupid????  It didn't even occur to me to put a link in and then link back.  That works fine now.  However, I would like to know how I could do this using the META tags you mentioned...

[saint959]

hi, you could do it this way. the content is the amount of time to refresh. so you could display a message saying

 

"You have logged in successfully, you will now be directed to the secure site" or something

 

 

<?php
print "<meta http-equiv=\"refresh\" content=\"2; url=http://www....\">";
?>

[gnawz]

Hi,

 

There are a couple of meta tags.

These tags are placed in the head section of an HTML page. thay are sued to decribe metadata of a web page' they are useful in SEO or telling web page robots how they should behave.

The structure of a meta tag is

name, content,action(or description).  For example a meta tag to describe the various keywords you want a page to be referenced with in a search eg google is conctructed as follows:

let's say the site is about relationships;

 

<meta name="keywords" content="love, lovelife, sextime, the beautiful,kiss her, kiss him"/>

These are the words that will return that particular page with that meta description should one search..

 

ANYWAY

 

There is one meta tag that is defined with a "refresh"

For your case you could echo it php after successful login thus:

 

<?php

echo ' <http-equiv="refresh" content="2";URL="adminctrl.php">';

?>

 

You can even add a mesasge

 

<?

echo' Login successful! You will now be redirected to the ........ page now';

echo ' <http-equiv="refresh" content="2;URL="adminctrl.php">';

?>

 

Note: Content defines the re-direct delay in seconds. In some PHP versions, 5 or lower you write secods with 2 zeros ie content ="500" for 5 seconds

Play around with this..

 

I hope it helps

 

Get back if you run into trouble.

 

Cheers