In this tutorial I will give a brief lesson on the PHP if-then-else statement.
Keep in mind that I don't practice the proper 'formatting' of code (like indenting).
It doesn't matter, but it does make things easier for big projects.

<?php $color = "red"; if ($color == "red") { echo("Red is a cool color!"); } else { echo("That color isn't red!"); } ?>

This will check to see what $color is and return the proper results.
If $color is "red" then print "Red is a cool color!".
But, If $color is not "red", then print "That color isn't red!".

Now I'll go into a deeper version of the above example.

<?php $color = "green"; if ($color == "red") { echo("Red is a cool color!"); } elseif ($color == "green") { echo("Green is also a cool color!"); } else { echo("That color is $color."); } ?>

This will also check to see what $color is and return the proper results.
If $color is "red", then print "Red is a cool color!".
Or, If $color is not "green", then print "Green is also a cool color!".
And if $color isn't "red" or "green", then print "That color is $color.".

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