Variables are code you assign your own rules too. Luckily with PHP there aren't a lot of rules or things you can't do with variables. Things to know: Variables with PHP are almost similar to Perl coding. PHP automatically converts certain types from one to another. Variables are wrote with a $ sign in-front of them, this keeps it cleaner in your code. Data Types: Booleans - Only two possible values, true or false. Strings - Sequence of characters. Arrays - Named collections of other values. Doubles - Floating numbers such as 9.9 and so on. Integers - Whole numbers, no decimal point, like 9999. Objects - These programmer defined classes, and can combine to make one class. Resources - Special variables that hold external resources to PHP, (Database Connections) Examples: Boolean: if (true) print ("I am a winner"); else print("I am a loser"); Integers: $integer = 9999; $integer2 = 9998; Doubles: $doubles = 3.14 $doubles2 = 3.17 Strings: $string1 = "XPGamesaves for life"; $string2 = "Bullet is the Founder"; $string3 = "DS is a noob"; -Iamcoolz