This wiki is for the exclusive use of my friends and colleagues. Account creation and anonymous editing have been turned off.
If you are a friend or colleague of mine, and would like to participate in this project, please send me a message.
If you find these pages useful, please donate to help cover server costs. Thanks!
Variables in PHP
Variables in PHP:
- are always preceded by a dollar sign ($)
- start with a letter or underscore (_)
- may contain any number of letters, numbers, and underscores
- are case-sensitive
Examples of Acceptable Variable Names
$var $_var $_Var $VAR $VAR_001
This is not a comprehensive list, merely examples.
Examples of Unacceptable Variable Names
(Variable names may only contain letters, numbers, and underscores.)
(Variable names may not contain # or spaces.)
(Variables names must begin with a dollar sign.)
Types of Variables
Assigning Values to Variables
To assign a value to a variable, use a single equal sign (=)
$var = "Hello, world."