Logging Laravel 5 SQL Queries in Controller.

QueryLoggingController.php

<?php namespace App\Http\Controllers;

use Illuminate\Support\Facades\DB;
use Illuminate\Http\Request;

class QueryLoggingController extends Controller
{
    public function __construct()
    {
        DB::listen(
            function ($sql, $bindings, $time) {
                // To save the executed queries to file:
                // Process the sql and the bindings:
                
                foreach ($bindings as $i => $binding) {
                    if ($binding instanceof \DateTime) {
                        $bindings[$i] = $binding->format('\'Y-m-d H:i:s\'');
                    } else {
                        if (is_string($binding)) {
                            $bindings[$i] = "'$binding'";
                        }
                    }
                }

                // Insert bindings into query
                $query = str_replace(array('%', '?'), array('%%', '%s'), $sql);

                $query = vsprintf($query, $bindings);

                // Save the query to file
                $logFile = fopen(
                    storage_path('logs' . DIRECTORY_SEPARATOR . date('Y-m-d') . '_query.log'),
                    'a+'
                );
                fwrite($logFile, date('Y-m-d H:i:s') . ': ' . $query . PHP_EOL);
                fclose($logFile);
            }
        );
    }
}