middleware.php

<?php

return collect(app("Illuminate\Contracts\Http\Kernel")->getMiddlewareGroups())
    ->merge(app("Illuminate\Contracts\Http\Kernel")->getRouteMiddleware())
    ->map(function ($middleware, $key) {
        $result = [
            'class' => null,
            'uri' => null,
            'startLine' => null,
            'parameters' => null,
            'groups' => [],
        ];

        if (is_array($middleware)) {
            $result['groups'] = collect($middleware)->map(function ($m) {
                if (!class_exists($m)) {
                    return [
                        'class' => $m,
                        'uri' => null,
                        'startLine' => null,
                    ];
                }

                $reflected = new ReflectionClass($m);
                $reflectedMethod = $reflected->getMethod('handle');

                return [
                    'class' => $m,
                    'uri' => $reflected->getFileName(),
                    'startLine' =>
                        $reflectedMethod->getFileName() === $reflected->getFileName()
                            ? $reflectedMethod->getStartLine()
                            : null,
                ];
            })->all();

            return $result;
        }

        $reflected = new ReflectionClass($middleware);
        $reflectedMethod = $reflected->getMethod('handle');

        $result = array_merge($result, [
            'class' => $middleware,
            'uri' => $reflected->getFileName(),
            'startLine' => $reflectedMethod->getStartLine(),
        ]);

        $parameters = collect($reflectedMethod->getParameters())
            ->filter(function ($rc) {
                return $rc->getName() !== 'request' && $rc->getName() !== 'next';
            })
            ->map(function ($rc) {
                return $rc->getName() . ($rc->isVariadic() ? '...' : '');
            });

        if ($parameters->isEmpty()) {
            return $result;
        }

        return array_merge($result, [
            'parameters' => $parameters->implode(','),
        ]);
    });