laravel 打印sql运行记录

app/Providers/AppServiceProvider.php

<?php

namespace App\Providers;

use Blade;
use Illuminate\Support\ServiceProvider;
use Illuminate\Support\Facades\DB;
use Illuminate\Contracts\Logging\Log;

class AppServiceProvider extends ServiceProvider
{
    /**
     * Bootstrap any application services.
     *
     * @return void
     */
    public function boot()
    {
        Blade::directive('currency', function ($x) {
            return "<?php if (round((float)$x, 2)) { echo number_format(round((float)$x, 2), 2); } ?>";
        });

        Blade::directive('currency_with_zero', function ($x) {
            return "<?php echo number_format(round((float)$x, 2), 2); ?>";
        });

        Blade::directive('selector', function ($x) {
            return "<?php echo 'ac-' . strtr($x, '.', '-'); ?>";
        });
        DB::listen(

            function ($sql) {
                // $sql is an object with the properties:
                //  sql: The query
                //  bindings: the sql query variables
                //  time: The execution time for the query
                //  connectionName: The name of the connection

                // To save the executed queries to file:
                // Process the sql and the bindings:
                foreach ($sql->bindings as $i => $binding) {
                    if ($binding instanceof \DateTime) {
                        $sql->bindings[$i] = $binding->format('\'Y-m-d H:i:s\'');
                    } else {
                        if (is_string($binding)) {
                            $sql->bindings[$i] = "'{$binding}'";
                        }
                    }
                }
                // Insert bindings into query
                $query = str_replace(array('%', '?'), array('%%', '%s'), $sql->sql);
                $query = vsprintf($query, $sql->bindings);

                \Log::debug($query);
                \Log::debug($sql->time . ' ms' . PHP_EOL . PHP_EOL);
            }
        );
    }

    /**
     * Register any application services.
     *
     * @return void
     */
    public function register()
    {
        //
    }
}