9.php
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
</head>
<body>
<h1>JavaScript</h1>
<ul>
<script>
i = 0;
while(i < 10){
document.write("<li>hello world</li>");
i = i + 1;
}
</script>
</ul>
<h2>php</h2>
<ul>
<?php
$i = 0;
while($i < 10){
echo "<li>hello world</li>";
$i = $i + 1;
}
?>
</ul>
</body>
</html>
