hello.php

<?php 
$name = "Nischal";
echo "hello world! $name<br>";

$age = 13;
echo "age=$age<br>";

$x = 5;
var_dump($x);
echo "<br>";

var_dump("John");
echo "<br>";

var_dump(3.14);
echo "<br>";

var_dump(true);
echo "<br>";

var_dump([2, 3, 56]);
echo "<br>";

var_dump(NULL);
echo "<br>";
?>