Does the html code in php file to be included in other files need to be wrapped in <html> tag?-CodePudding

I have a signin.php file that can be used in multiple web pages where users can sign in via the pop up window. This file includes

<?php
//some code to process submitted sign up form
?>

<div>
// some html code for the sign in pop up window
</div>

I want to include signin.php in other html page files. Do I need to wrap the html code above with !DOCTYPE html, html, head, or body tag? I tested it seems it works without these tags. Thanks.

CodePudding user response：

No, if your going to just include the tags from another file then you don't need to put the <html> tag because if your code is

<!DOCTYPE html>
<html>
<head></head>
<body>
<div>
<?php include("hello.php")?>
</div>
</body>
</html>

and in hello.php you just have an h1 tag with hello it will get rendered as

<div>
<h1>Hello</h1>
</div>