platform-trace/app/Http/Middleware/SqlMiddleware.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Support\Facades\DB;

class SqlMiddleware
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request $request
     * @param  \Closure $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        if ($request->sql_debug==1) {
            DB::connection()->enableQueryLog();
        }

        $response = $next($request);
        if ($request->get('sql_debug')) {
            $queries = DB::getQueryLog();

            if (!empty($queries)) {
                foreach ($queries as &$query) {
                    $query['full_query'] = vsprintf(str_replace('?', '%s', $query['query']), $query['bindings']);
                }
            }

            dd($queries);exit;
        }

        return $response;
    }
}