How to use PHP variables
How to create and use variables in PHP
Variables are used in PHP to store and manipulate values. They can be defined by using the “$” sign followed by a name of your choice.
Syntax:
$variable_name = value;
Usage Examples:
Example 1: Declaring a string variable
$name = "John";
echo "My name is $name";
Example 2: Declaring a numerical variable
$age = 25;
$new_age = $age + 5;
echo "My age is $new_age";
Parameter Values:
| Parameter | Description |
|---|---|
| $variable_name | Name of the variable you want to declare |
| value | The value you want to assign to the variable |
Technical Details:
PHP variables are case-sensitive, which means that $name, $Name, and $NAME are three different variables. Additionally, PHP has several data types that can be assigned to a variable:
- String
- Integer
- Float
- Boolean
- Array
- Object
- NULL
For more information on PHP variables and data types, see the PHP manual here.
Written by: Steven Iversen 05-05-2023 Written in: PHP tutorials
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