Bootstrap Navbar for WordPress

bootstrap-navbar.php

<nav class="navbar navbar-inverse navbar-fixed-top" role="navigation">
	<div class="container">
		<!-- Navbar Header -->
		<div class="navbar-header">
		<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#collapsible">
		  <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="<?php echo home_url( '/' ); ?>" title="<?php echo esc_attr( get_bloginfo( 'description' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?> // </a>
		</div>
		
		<div class="navbar-collapse collapse" id="collapsible" >
		
		<!-- Primary Menu -->
		<ul class="nav navbar-nav">	
		<?php
			wp_nav_menu( array(
				'menu'              => 'primary',
				'theme_location'    => 'primary',
				'depth'             => 2,
				'container'         => 'div',
				'container_class'   => 'collapse navbar-collapse',
				'container_id'      => 'bs-example-navbar-collapse-1',
				'menu_class'        => 'nav navbar-nav',
				'fallback_cb'       => 'wp_bootstrap_navwalker::fallback',
				'walker'            => new wp_bootstrap_navwalker())
			);
		?>
		</ul>
		
		<!-- Search Form -->
		<form id="searchform" class="navbar-form navbar-right" role="form" action="<?php echo home_url( '/' ); ?>">
			<div class="input-group">
				<input type="text" class="form-control" name="s" placeholder="Ara"><span class="input-group-btn"><button type="submit" class="btn btn-default btn-primary"><span class="glyphicon glyphicon-search"></span></button></span>
			</div>
		</form>

		<!-- Login/Logout -->
		<div class="navbar-right">
		<?php if (get_option('users_can_register')) : ?>
			<a class="navbar-text" href="<?php bloginfo('wpurl'); ?>/wp-login.php?action=register">Üye Ol</a>
			<?php
				if ( is_user_logged_in() ) {
					echo '<a class="navbar-text" href="'.wp_logout_url( get_permalink() ).'" title="Logout">Logout</a>';
				} else {
					echo '<a class="navbar-text" href="'.wp_login_url( get_permalink() ).'" title="Login">Login</a>';
				}
			?>
		<?php endif; ?>
		</div>


		</div><!--/.nav-collapse -->
	</div><!-- /.container -->
</nav><!-- /.navbar -->