Caching issue

about.blade.php

@extends('partials.template')
@section('content')
	<div class="g two-thirds">
		<h2>About Me</h2>
		<p>
			Back-end PHP Developer from Huddersfield, UK
		</p>
		<p>
			More info coming when I know what to put here.
		</p>
		<p class=proceed><a href="{{ URL::to('about') }}" class="go">Read more...</a></p>
	</div>
	<div class="g one-third">
	
	</div>
	<div class="g one-whole">
		<p>There will be other stuff here shortly</p>
	</div>
@stop

contact.blade.php

@extends('partials.template')
@section('content')
	<div class="g two-thirds">
		<h2>Contact Me</h2>
		<div id="wufoo-z7x3p9">
			Fill out my <a href="http://aranw.wufoo.com/forms/z7x3p9">contact form</a>.
		</div>
		<script type="text/javascript">
			var z7x3p9;(function(d, t) {
				var s = d.createElement(t), options = {
					'userName':'aranw', 
					'formHash':'z7x3p9', 
					'autoResize':true,
					'height':'517',
					'async':true,
					'header':'show'
				};
				s.src = ('https:' == d.location.protocol ? 'https://' : 'http://') + 'wufoo.com/scripts/embed/form.js';
				s.onload = s.onreadystatechange = function() {
					var rs = this.readyState; 
					if (rs) 
						if (rs != 'complete') 
							if (rs != 'loaded') return;
					try {
						z7x3p9 = new WufooForm();
						z7x3p9.initialize(options);
						z7x3p9.display(); 
					} catch (e) {}};
					var scr = d.getElementsByTagName(t)[0], 
						par = scr.parentNode; 
					par.insertBefore(s, scr);
			})(document, 'script');
		</script>
	</div>
	<div class="g one-third social">
		<h2>Social Links</h2>
	</div>
@stop

PageController.php

<?php

class PageController extends Controller {

	/**
	 * Blog Posts
	 *
	 * @var array
	 **/
	protected $posts;

	/**
	 * undocumented function
	 *
	 * @return void
	 * @author 
	 **/
	public function __construct(PostRepository $posts)
	{
		$this->posts = $posts;
	}


	public function showIndex()
	{
		$view = View::make('pages.index');
		$view->with('title', "Aran Wilkinson - Web Developer");

		// Get the 5 latest blog posts titles
		$posts = $this->posts->getLatestPosts(5, array('id', 'title', 'slug'));
		$view->with('posts', $posts);

		return $view;
	}

	public function showAbout()
	{
		$view = View::make('pages.about');
		$view->with('title', "About");

		if (Cache::has('page.about'))
		{
			return Cache::get('page.about');
		}
		else
		{
			Cache::put('pages.about', $view, '2880');
			return $view;
		}
	}

	public function showContact()
	{
		$view = View::make('pages.contact');
		$view->with('title', "Contact");

		if (Cache::has('page.contact'))
		{
			return Cache::get('page.contact');
		}
		else
		{
			Cache::put('pages.contact', $view, '2880');
			return $view;
		}
	}

}

PostController.php

<?php

use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

class NoPostsException extends Exception {} 

class PostController extends Controller 
{

	/**
	 * Blog Posts
	 *
	 * @var array
	 **/
	protected $posts;

	/**
	 * undocumented function
	 *
	 * @return void
	 * @author 
	 **/
	public function __construct(PostRepository $posts)
	{
		$this->posts = $posts;
	}

	public function showIndex()
	{

		return Cache::remember('blog.index', '720', function()
		{
			$posts = $this->posts->getLatestPosts();

			$posts = ($posts->isEmpty()) ? null : $posts;

			return View::make('blog.index')->with('title','Aran Wilkinson - Blog')->with('posts', $posts);
		});
		// $view = View::make('blog.index');
		// $view->with('title', "");
			

		// // 
		// // Also pagination needs to be taken care of?
		// // 
		// $view = $view->render();

		// if (Cache::has('blog.index'))
		// {
		// 	return Cache::get('blog.index');
		// }
		// else
		// {
		// 	Cache::put('blog.index', $view, '2880');
		// 	return $view;
		// }

		// return $view;
	}

	public function showPost($post_slug = null)
	{	
		// We need our blog post before we get to our view
		$post = $this->posts->getPostBySlug($post_slug);

		// Might as well throw a error here if we have no post before we render anything!
		

		$view = View::make('blog.post');
		$view->with('title', "Aran Wilkinson - "); // We need to get the post title


		$view->with('post', $post);
		// 
		// Get the requested blog post 
		// If it doesn't exist give 404 error
		// 

		return $view;
	}

	public function resolvePost($post_id)
	{
		$post = $this->posts->getPostById($post_id);

		if ( $post )
		{

			return Redirect::to('blog/'.$post->slug);
		}
		else
		{
			// Trigger 404
			throw new NotFoundHttpException('Unable to find that blog post');
		}
	}

}

Stack Trace

Exception: Serialization of 'Closure' is not allowed
in /Users/aran/Sites/blog/vendor/illuminate/cache/src/Illuminate/Cache/FileStore.php line 75
at serialize() in /Users/aran/Sites/blog/vendor/illuminate/cache/src/Illuminate/Cache/FileStore.php line 0
at FileStore->storeItem('blog.index', object(View), '720') in /Users/aran/Sites/blog/vendor/illuminate/cache/src/Illuminate/Cache/Store.php line 114
at Store->put('blog.index', object(View), '720') in /Users/aran/Sites/blog/vendor/illuminate/cache/src/Illuminate/Cache/Store.php line 149
at Store->remember('blog.index', '720', object(Closure))
at call_user_func_array(array(object(FileStore), 'remember'), array('blog.index', '720', object(Closure))) in /Users/aran/Sites/blog/vendor/illuminate/support/src/Illuminate/Support/Manager.php line 127
at Manager->__call('remember', array('blog.index', '720', object(Closure)))
at CacheManager->remember('blog.index', '720', object(Closure))
at call_user_func_array(array(object(CacheManager), 'remember'), array('blog.index', '720', object(Closure))) in /Users/aran/Sites/blog/vendor/illuminate/support/src/Illuminate/Support/Facade.php line 56
at Facade::__callStatic('remember', array('blog.index', '720', object(Closure))) in /Users/aran/Sites/blog/app/controllers/PostController.php line 38
at Cache::remember('blog.index', '720', object(Closure)) in /Users/aran/Sites/blog/app/controllers/PostController.php line 38
at PostController->showIndex()
at call_user_func_array(array(object(PostController), 'showIndex'), array()) in /Users/aran/Sites/blog/vendor/illuminate/routing/src/Illuminate/Routing/Controllers/Controller.php line 131
at Controller->directCallAction('showIndex', array()) in /Users/aran/Sites/blog/vendor/illuminate/routing/src/Illuminate/Routing/Controllers/Controller.php line 116
at Controller->callAction(object(Application), object(Router), 'showIndex', array()) in /Users/aran/Sites/blog/vendor/illuminate/routing/src/Illuminate/Routing/Router.php line 509
at Router->Illuminate\Routing\{closure}()
at call_user_func_array(object(Closure), array()) in /Users/aran/Sites/blog/vendor/illuminate/routing/src/Illuminate/Routing/Route.php line 64
at Route->callCallable() in /Users/aran/Sites/blog/vendor/illuminate/routing/src/Illuminate/Routing/Route.php line 39
at Route->run(object(Request)) in /Users/aran/Sites/blog/vendor/illuminate/routing/src/Illuminate/Routing/Router.php line 538
at Router->dispatch(object(Request)) in /Users/aran/Sites/blog/vendor/illuminate/foundation/src/Illuminate/Foundation/Application.php line 243
at Application->dispatch(object(Request)) in /Users/aran/Sites/blog/vendor/illuminate/foundation/src/Illuminate/Foundation/Application.php line 223
at Application->run() in /Users/aran/Sites/blog/public/index.php line 51