<?php

use Carbon\Carbon;

$date1 = Carbon::now()->subDays(6);
$date2 = Carbon::now();

echo $date2->diffInMinutes($date1) . PHP_EOL;
echo $date2->diffForHumans($date1) . PHP_EOL;

echo Carbon::now()->startOfDay()
    ->toDateTimeString() . PHP_EOL;
echo Carbon::now()->endOfDay()
    ->toDateTimeString() . PHP_EOL;

8640
6 days after
2018-12-13 00:00:00
2018-12-13 23:59:59

• Create a json schema to validate against
• Create your own Faker provider for generating fake data
• Webmozart Asserts - assertions for input validation

PHP 7.2, Zend 3.0, Symfony 4.0, Laravel 5.6, PHPUnit 6.5, Doctrine 2.8