php placement question

**DaveGears86** · 01-26-2012, 01:09 AM

I have created a log-in area and everything is technically sound on the front of logging in, viewing secure pages and then logging out.

At the very top of my secure pages I have the following PHP:

PHP Code:


<?php



session_start();



if ($_SESSION['username'])

{

    

    echo "You are logged in as: ".$_SESSION['username'];

    echo "<p>";

    echo "<a href='logout.php'>Click here to logout</a>";

    

}

else

    header ("location: index2.htm");



?>

<html>

<title>blah blah blah</title>

This displays "You are logged in as: MrPink" with "Click here to logout" at the top center of the page (obviously very undesirable as it pushes the content/divs down the page). So, could somebody help explain to me how I can place the PHP "You are logged in as : MrPink" where ever I want on the page?

(and yep, Reservoir Dogs fan)

Thanks

**Corrosive** · 01-26-2012, 09:30 AM

Just break up the PHP into;

PHP Code:


<?php



session_start();



?>

at the top of the page.

Then place this part where you want the message to appear (in a div I'd imagine);

PHP Code:




<?php



if ($_SESSION['username'])

{

    

    echo "You are logged in as: ".$_SESSION['username'];

    echo "<p>";

    echo "<a href='logout.php'>Click here to logout</a>";

    

}

else

    header ("location: index2.htm");



?>

PHP can run and output anywhere you call it on the page.

**DaveGears86** · 01-26-2012, 11:17 AM

Thats brilliant and yet so simple, Thanks Corrosive.

I do have a problem though - Designs By Maverick™ - Web Design by David Barkham

Warning: Cannot modify header information - headers already sent by (output started at /home/designs6/public_html/membersarea.php:13) in /home/designs6/public_html/membersarea.php on line 205

and line 205 is -

header ("location: index2.htm");

Any ideas what's wrong here?
Thanks

**DaveGears86** · 01-26-2012, 11:32 AM

ah ha! I managed to sort it by adding :

This to the top of the entire document:

PHP Code:


<?php 



ob_start(); 



?>

and this at the end of the entire document:

PHP Code:


<?php 



ob_end_flush(); 



?>

simples, thanks.

**Corrosive** · 01-26-2012, 01:14 PM

You could have disabled the warning using error handling but your solution is fine. Remember that error handling should be at a higher level during development and then it can be suppressed in the production environment

**DaveGears86** · 01-26-2012, 01:25 PM

ah ok,

could you show me what you mean (what code would I add and where etc)?

Thanks

**Corrosive** · 01-26-2012, 01:42 PM

This is from the PHP manual website;

PHP Code:


<?php



// Turn off all error reporting

error_reporting(0);



// Report simple running errors

error_reporting(E_ERROR | E_WARNING | E_PARSE);



// Reporting E_NOTICE can be good too (to report uninitialized

// variables or catch variable name misspellings ...)

error_reporting(E_ERROR | E_WARNING | E_PARSE | E_NOTICE);



// Report all errors except E_NOTICE

// This is the default value set in php.ini

error_reporting(E_ALL ^ E_NOTICE);



// Report all PHP errors (see changelog)

error_reporting(E_ALL);



// Report all PHP errors

error_reporting(-1);



// Same as error_reporting(E_ALL);

ini_set('error_reporting', E_ALL);



?>

and shows your options for error handling.

What you had was a warning only and should not have affected your application. Error handling is a debug tool really.

BTW, here is your new bible; PHP: Hypertext Preprocessor horrendous website to view and navigate but soooo many useful things it worth persevering with it

**DaveGears86** · 01-26-2012, 01:47 PM

Brilliant, thanks I appreciate it.

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