You shouldn't be using session_register or session_is_registered anyway, take a look at the PHP documentation.
http://php.net/session_is_registered

Right below # BEGIN SCRIPT place
error_reporting(E_ALL); Then follow the FAQ on the main page of the PHP forums

If you want to place it dynamically inside another page you would have one PHP file generate the image and then point to that in an <img> tag.

But to set the content-type just use:...

It doesn't matter what year you're talking about a hash is by definition impossible to reverse. A hash is ONE WAY. You may be able to use a supercomputer to calculate hash collisions which result in...

OK, I gotta throw my 2 cents in here. There is no such thing as a de-hasher. A hash is ONE WAY. The only thing that can be done is to produce every possible string against the salt using the same...

Don't use HTTP_COOKIE_VARS, use _COOKIE
http://php.net/$_COOKIE

You have an extra , right before the WHERE

There's really no better tutorial for regular expressions that http://regular-expressions.info

http://php.net/curl Google is your friend.

There really is no "best" with IDEs. Try a few out for a week or so (enough to get to know the IDE) then try another one. At the end figure out which one you like the best and stick with it.

Some...

Add a captcha
http://recaptcha.net/

Just no. For two reasons: Reason 1) You're duplicating code, if he wants to change the td's to dd's or something like that he has to change it in two places, Reason 2) I'm not even going to begin...

http://php.net/preg_match

... ... php.net/parse_url (http://php.net/parse_url)

Cool, how's that working out for you?

It's really up to you, everyone learns differently. For you it may help you learn faster. Personally, I don't know ActionScript so I can't attest to their similarity. With PHP having so many built-in...

you're already in PHP, you don't need to do <?php echo Also, you're in double quotes so you must surround the $onrow["index"] with {} ie., {$onrow["index"]}

// if you're using XHTML
str_replace('<br />', "\n", $string);
// if you're using HTML
str_replace('<br>', "\n", $string);

If you want everything accept for letters and numbers you can use

$pattern = '/[^a-z0-9]/i';
If you are specific about \/:"?<*>| then it's this

$pattern = '#[\/:"\?<\*>|]#';

A) Invert that $_SESSION['username'] condition to just exit or something if it's not present instead of wrapping ALL of your code in an if
B) Use a bit more meaningful variable names than ij.
C)...

That is a variable property in the same why variable variables are created. For example:

// variable variable example
$var = "hello";
$hello = "world";
echo $$var; // world

// variable...

Business logic just means any logic about how the program runs like when/how something should be updated in the database, etc. (Yes, PHP)

If the account has IMAP enabled use that. http://lmgtfy.com/?q=php+imap

$variable[]=$row[0];
Arrays use the []= operator, not +=

I usually like to take the time and explain why its wrong but I'm lazy today so I'll just fix it.

<?php
class DBconnection {
private $host="localhost";
private $user="root";
private...

If you've gotten the error "Supplied argument is not a valid MySQL resource" you're in luck because so has everyone else that has ever used PHP... ever. The error is caused by a number of things...

well yeah, the fact that you left out that it said data.Student is pretty big :) lowercase Student on line 32 , case is important, that should fix it

What do you mean "what do we do"? I just told you what to do. You have to set $_SESSION["login"] when a user logs in. I think its the 4th time I've said it now

If you're doing a container of sorts where you dynamically add variables and get them you might want something like this.

class Container
{
private $holder;
public function __get($key)
{...

In all browsers that's how it is supposed to work. Sessions are saved to cookies which either expire after a certain amount of time or after a user closes their browser. There would be absolutely no...

You don't need a switch statement

<?php
$day = intval($_GET['day']);
if($day >0 && $day <8) {
include('day' . $day . '.php');
} else {
echo 'Invalid page';
}
?>

Firstly, this should be in the HTML forum, secondly
<img height="32" width="32" src="blah.jpg />
... ...

Aside from what they've said about validation just remove the quotes around the variable. Variables inside '' aren't parsed out so you won't get anything but that string. Either use "" or none at all...

3 "words": Facebook, Yahoo, and a little one called Wikipedia (MediaWiki)

Built-in function for php http://php.net/wordwrap

Just in case you hadn't fixed it yet, (\d{2}\-){2}\d{4} is the correct regular expression. for 12-34-5678 format. To correctly write a regular expression you have to know exactly what your input must...

The super keyword, to my understanding would be used with this syntax in php

parent::someFunc();

It's called the arrow operator, and when using it you don't prepend the member with $, ie.,

class SomeClass{
private $blah = "Hello";

function getBlah(){return $this->blah;}
function...

Depending on whether you are Linux or windows. Windows has the WAMP stack www.wampserver.com/en/ if you are Linux there is the LAMP stack http://www.mysql-apache-php.com/

--->>>
extract($row);