php defined variables code example

Example 1: define value in php

$var = 5; //int
$var = "hey"; //str
$var = 'A'; //char

Example 2: php variables

<?php
/* In PHP, a variable starts with the $ sign, 
followed by the name of the variable:
*/

$txt = "Hello world!";
$x = 5;
$y = 10.5;
?>