PHP
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Hello world</title>
</head>
<body>
<h1>php</h1>
<?php
echo "Hello world";
?>
</body>
</html>Javascript
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Hello world</title>
</head>
<body>
<h1>Javascript</h1>
<script>
document.write("Hello world");
</script>
</body>
</html>
- php ---> Server side Language
Javascript ---> Client side Language
