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1. Create the first page, update_account.php, with the following code:

Update Account Information

Here you can update your account information for viewing in your profile.

Your account information has been updated.
Click here to return to your account.
Email: >
City: >
State: >
Hobbies/Interests: (choose at least one)

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Beginning PHP5, Apache and MySQL Welcome to your (Web hosting asp)

Friday, December 28th, 2007

Welcome to your personal information area

Here you can update your personal information, or delete your account.
Your information as you currently have it is shown below:
Click here to return to the home page

First Name:
Last Name:
City:
State:
Email:
Hobbies/Interests:

Update Account | Delete Account

How It Works How it works isn t that much different than anything you ve done so far in this book. You ve made calls to the database, pulled information, displayed information, and used that information. The only difference here is the use of the sessions, once again. The session is used to track users so they are not allowed to access someone else s account. You make a call to the table to pull up the account, according to the user s supplied username and password. This way there is no confusion as to whose account they should be in; that is, if they were able to log in to the system, then they are using their own account. This section is dependent on the login process. If users fail the login process, they won t be able to use this system to update or delete their account as they see fit. Displaying, modifying, and deleting the information from MySQL is no different than what you have done thus far, but now you ve used the session security. Try It Out Editing User Accounts You may have noticed in the previous exercise that there are links to pages that you haven t created yet. Let s do that now. One page will allow a logged-in user to update his or her account. The other will allow the user to delete the account upon confirming that that is the intention. 385 User Logins, Profiles, and Personalization
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Invalid Username and/or (Top web site) Password Not registered? Click here

Friday, December 28th, 2007

Invalid Username and/or Password
Not registered? Click here to register.

> Username:
Password:

Login below by supplying your username/password…
Or click here to register.

3. Create the user_personal.php page with the following code: 384 Chapter 12
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Try It Out Authorizing Users to Edit Their Accounts Now you can create the area where users are allowed to change their information or delete their account. Call this page user_personal.php, but first you will create a slightly modified authorization page, which checks whether or not users are logged in and, if they are not, redirects them to your also slightly modified login page: 1. Enter the first set of code and call it auth_user.inc.php: ; echo (If your browser doesn t support this, . click here) ; die(); } ?> 2. Create the modified login page. Call this one user_login.php. The modification is in the way that you check the username and password against usernames and passwords stored in the MySQL database. Previously, you just hard-coded a username and password in the code. ; echo (If your browser doesn t support this, . click here) ; } else { ?> 383 User Logins, Profiles, and Personalization
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Hobbies/Interests: (choose at least one)

Golfing Hunting Reading Dancing Internet Flying Traveling Exercising Computers Other Than Listed

How It Works That whole page is the registration page. It is used to allow users to register for your login system. The page allows users to choose different options for their accounts and restricts users from using someone else s username for registration. Once users are registered, they are allowed to log in to the system and modify their account information as they see fit. The index.php page checks whether or not a user is logged in. Again, the $_SESSION[ ] variable is the one being checked to see if users have already been logged in and they are just revisiting some pages. If they are not logged according to those session variables, they will be shown the unlogged_user.php page. Assuming they have logged in, they will be shown the logged_user.php page. The unlogged_user.php page is displayed if the user is not logged in and their session has not yet been created. That was checked when they visited the index.php page. The logged_user.php page is displayed if the user is logged in and their session has been created. That was also checked when they visited the index.php page. Also, it displays the username that they used to log in with in the welcome message. The $_SESSION[ user_logged ] is the user s username from the database. Here s a quick recap of what you ve done: . You have an index page that checks whether or not a user is logged in. . Based on that check, it either tells the user to log in or register to allow access to his or her personal information area. . You have the registration area covered, along with the login process, and are keeping users tracked with their session information. 382 Chapter 12
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Welcome to the registration page!
The Username, Password, Email, First Name, and Last Name fields are required!

} else { $query = INSERT INTO user_info (username, password, email, . first_name, last_name, city, state, hobbies) . VALUES ( . $_POST[ username ] . , . (PASSWORD( . $_POST[ password ] . )), . $_POST[ email ] . , . $_POST[ first_name ] . , . $_POST[ last_name ] . , . $_POST[ city ] . , . $_POST[ state ] . , . implode( , , $_POST[ hobbies ]) . ); ; $result = mysql_query($query) or die(mysql_error()); $_SESSION[ user_logged ] = $_POST[ username ]; $_SESSION[ user_password ] = $_POST[ password ]; ?>

Thank you, for registering!
; echo (If your browser doesn t support this, . click here) ; die(); } } else { ?>

The Username, Password, Email, First Name, and Last Name fields are required!
Username: >
Password: >
Email: >
First Name: >
Last Name: >
City: >
State: >
Hobbies/Interests: (choose at least one)

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Starting a web site - Last Name: > State: >Golfing >Reading >Internet >Traveling

Sunday, December 23rd, 2007

Last Name:

>
City: >
State: >
Hobbies/Interests: (choose at least one)

>Golfing >Hunting >Reading >Dancing >Internet >Flying >Traveling >Exercising >Computers >Other Than Listed

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4. Create a page called conn.inc.php to include in your pages for your MySQL connection information: 5. Create the registration page, making sure you include the optional fields and that the username chosen by the user registering isn t the same as an existing username. Call it register.php (it s a lot of code all at once, but we explain it all later when we get this system together). If users don t fill out some required fields, or use an already registered username, you will notify them, and keep what had previously been entered in the appropriate fields so they don t have to re-enter everything.

The Username, , is already in use, please choose another!