How do I compress HTML in laravel 5

Question

In Laravel 4.0, I use the code below to compress the HTML laravel response outputs to browser, however it doesn't work in laravel 5.

App::after(function($request, $response)
{
    if($response instanceof Illuminate\Http\Response)
    {
        $buffer = $response->getContent();
        if(strpos($buffer,'<pre>') !== false)
        {
            $replace = array(
                '/<!--[^\[](.*?)[^\]]-->/s' => '',
                "/<\?php/"                  => '<?php ',
                "/\r/"                      => '',
                "/>\n</"                    => '><',
                "/>\s+\n</"                 => '><',
                "/>\n\s+</"                 => '><',
            );
        }
        else
        {
            $replace = array(
                '/<!--[^\[](.*?)[^\]]-->/s' => '',
                "/<\?php/"                  => '<?php ',
                "/\n([\S])/"                => '$1',
                "/\r/"                      => '',
                "/\n/"                      => '',
                "/\t/"                      => '',
                "/ +/"                      => ' ',
            );
        }
        $buffer = preg_replace(array_keys($replace), array_values($replace), $buffer);
        $response->setContent($buffer);
    }
});

Please how do i make this work in Laravel 5.

OR

Please provide a better way of compressing HTML in laravel 5 if any. Thanks in advance.

NB: I don't wish to use any laravel package for compressing html, just need a simple code that does the work without killing performance.

Answer 1

Complete code is this (with custom GZip enabled) :

<?php

namespace App\Http\Middleware;

use Closure;

class OptimizeMiddleware
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        $response = $next($request);
        $buffer = $response->getContent();
        if(strpos($buffer,'<pre>') !== false)
        {
            $replace = array(
                '/<!--[^\[](.*?)[^\]]-->/s' => '',
                "/<\?php/"                  => '<?php ',
                "/\r/"                      => '',
                "/>\n</"                    => '><',
                "/>\s+\n</"                 => '><',
                "/>\n\s+</"                 => '><',
            );
        }
        else
        {
            $replace = array(
                '/<!--[^\[](.*?)[^\]]-->/s' => '',
                "/<\?php/"                  => '<?php ',
                "/\n([\S])/"                => '$1',
                "/\r/"                      => '',
                "/\n/"                      => '',
                "/\t/"                      => '',
                "/ +/"                      => ' ',
            );
        }
        $buffer = preg_replace(array_keys($replace), array_values($replace), $buffer);
        $response->setContent($buffer);
        ini_set('zlib.output_compression', 'On'); // If you like to enable GZip, too!
        return $response;
    }
}

Please check your browser network inspector for Content-Length header before/after implement this code.

enjoy it ... :).. .