PHP Variables

PHP Variables

A variable starts with the $ sign, followed by the name of the variable.

<?php
$name  = "Alex";
$age   = 25;
$price = 9.99;
echo "Name: $name, Age: $age";

Rules for variable names

• Must start with a letter or underscore _
• Cannot start with a number
• Can only contain letters, numbers and underscores
• Names are case-sensitive ($age and $AGE are different)