Variables in PHP; How to Declare variables in PHP; What is a Variable?
Variables are "containers" for storing information.
Creating (Declaring) PHP Variables
In PHP, a variable starts with the $ sign,
followed by the name of the variable:
$x = 2024;
$y = "InfinityIT"
When you assign a text value to a variable, put quotes around the value.
Unlike other programming languages,
PHP has no command for declaring a variable.
It is created the moment you first assign a value to it.
PHP Variables
A variable can have a short name (like $x and $y) or
a more descriptive name ($age, $carname, $total_volume).
Rules for PHP variables:
A variable starts with the $ sign, followed by the name of the variable
A variable name must start with a letter or the underscore character
A variable name cannot start with a number
A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )
Variable names are case-sensitive ($age and $AGE are two different variables)
Remember that PHP variable names are case-sensitive!
https://www.php.net/
A popular general-purpose scripting language that is especially suited to web development.
Fast, flexible and pragmatic, PHP powers everything from your blog to the most popular websites in the world.
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