Laravel 5.3 date validator: equal to or after start_date : <p>I'm using Laravel 5.3 to validate start_date and end_date for an event.
end_date should be equal to start_date or the after date. <code>end_date &gt;= start_date</code></p>

<pre><code>$validator = Validator::make($data, [
    'start_date'    =&gt; 'required|date',
    'end_date'      =&gt; 'required|date|after:start_date',
]);
</code></pre>

<p>I tried to use <strong>after</strong>, but it only works for end_date > start_date.
Of course, I can add custom rule using <code>Validator::extend</code>, but I'd like to know if we can do without adding custom rule.</p>

<p>Is there any way to add negative rule or add >= rule?</p>

<p>Thanks</p>
