Laravel框架打印sql

use DB;

function getSql(){
	DB::connection()->enableQueryLog();
	//执行的语句
	$sql = DB::getQueryLog();
	dd($sql);
}

public function boot()
{
    \DB::listen(
        function ($sql) {
            foreach ($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'";
                    }
                }
            }

            $query = str_replace(array('%', '?'), array('%%', '%s'), $sql->sql);

            $query = vsprintf($query, $sql->bindings);

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