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If Not This, Then What? - PHP

Now that you've got the basics of PHP variables and operators down, the second article in this series takes a look at PHP's form-processing capabilities, and introduces you to the comparison and logical operators and the "if-else" and "switch" family of conditional statements.

  1. PHP 101 (Part 2) - Shakespeare's Rose
  2. Form...
  3. ...And Function
  4. Operating With Extreme Caution
  5. Shakespeare In The Matrix
  6. If Not This, Then What?
  7. Fortune Smiles
  8. Submitting To The King
  9. Miscellaneous Notes
By: Vikram Vaswani and Harish Kamath, (c) Melonfire
Rating: starstarstarstarstar / 11
August 08, 2000

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In addition to the "if" statement, PHP also offers the "if-else" construct, used to define a block of code that gets executed when the conditional expression in the "if" statement evaluates as false.

The "if-else" construct looks like this:

if (condition) { do this! } else { do this! }
As you can see, this construct can be used to great effect in the last example - instead of two separate "if" statements, we can combine them into a single "if-else" statement.

<html> <head> <basefont face="Arial"> </head> <body> <center> <? // check name and print appropriate message if ($name == "neo") { ?> <font face="Arial" size="-1"> Welcome to the Matrix, Neo. <p> May The Force be with you...oops, wrong movie! </font> <? } else { ?> <font face="Arial" size="-1"> I wonder if you've heard of Shakespeare, <? echo $name; ?>. <p> He postulated that a rose by any other name would smell just as sweet. <p> Unfortunately for you, I disagree. Access denied. </font> <? } ?> </center> </body> </html>

>>> More PHP Articles          >>> More By Vikram Vaswani and Harish Kamath, (c) Melonfire

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