TrimMiddleware.php

<?php

namespace ChurchSocial\Middleware;

use Closure;

class TrimMiddleware
{
    public function handle($request, Closure $next)
    {
        $request->replace(
            $this->trimArray($request->all())
        );

        return $next($request);
    }

    protected function trimArray($input)
    {
        if (is_string($input)) {
            return trim($input);
        }

        if (is_array($input)) {
            return array_map([$this, 'trimArray'], $input);
        }

        return $input;
    }
}