I am customizing an already existing theme. The theme uses a header.php and a footer.php. I noticed that the <body> and </body> tags are split between the two PHP files, respectively. If I want to make a <form> element that will not be a part of the navbar at the top nor the footer links at the bottom, should I make a separate PHP file? This might seem like common sense for most, but I am very new to web dev. I'm asking because it is also possible to put it under the navbar code in my header.php file.
header.php
<!DOCTYPE html>
<html <?php language_attributes(); ?>>
<head>
<meta charset="<?php bloginfo( 'charset' ); ?>" />
<meta name="viewport" content="width=device-width, initial scale=1" />
<title><?php wp_title( ' | ', true, 'right' ); ?></title>
<link rel="stylesheet" type="text/css" href="<?php echo get_stylesheet_uri(); ?>" />
<?php wp_head(); ?>
</head>
<body <?php body_class(); ?>>
<div id="wrapper" class="hfeed">
<header id="header" role="banner">
<section id="branding">
</section>
<nav class="navbar navbar-default">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="http://www.efficientmind.org/?page_id=73&ap_page=ask">MoonLighting</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav navbar-right">
<li><a href="http://www.efficientmind.org/?page_id=73">Side Job</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">My Account <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Settings</a></li>
<li><a href="#">Add Funds</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">Sign Out</a></li>
</ul>
</li>
</ul>
</div>
</div><!-- /.container-fluid -->
</nav>
footer.php
<div class="clear"></div>
</div>
<footer id="footer" role="contentinfo">
<div id="copyright">
<?php echo sprintf( __( '%1$s %2$s %3$s. All Rights Reserved.', 'blankslate' ), '©', date( 'Y' ), esc_html( get_bloginfo( 'name' ) ) ); echo sprintf( __( ' Theme By: %1$s.', 'blankslate' ), '<a href="http://tidythemes.com/">TidyThemes</a>' ); ?>
</div>
</footer>
</div>
<?php wp_footer(); ?>
</body>
</html>
