Chained Selects Php

One very good reason for using PHP is the way it enables a web site programmer to automate server tasks. Take, for example, the task of creating a new user account. Instead of a system administrator obtaining a new user's details and then entering them onto a MySQL database, PHP will do all of that. Automatically. And it can even check to see if the new user name has already been used or not.

The PHP programmer does all of this by writing code that will:

• work out whether the web page needs to display a blank form or if it should process the new user's details
• if no user details have been entered then display a form asking for all relevant details (such as a proposed user name)
• if user details have been entered then query the database to see if the user name already exists
• inform the user if the id has already be taken
• create the new id if it is available

And, this can all be achieved with just a few lines of PHP code.

Identifying Whether or Not the User Has Entered Their Details

The web page should display:

• Editthispagephp

  S''ingle'' Page '''Applicati'''on and Development Environment (Spade) A "Single Page Application and Development Environment" (Spade) is a Spa application ...

• Div In Php Tag

• Php If Not Equal

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  Sending email using PHP ... PHP Diary | PHP Housekeeping | PHP Scripts | TD Scripts.com Guts or Glory Poker PHP - A casino-style card game written entirely in PHP

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