The example greetings facebook

GreetingsTo.php

<?php
/**
 * @author      Hossam Youssef <Hossam.mox@gmail.com.com>
 * @copyright   2016 Hossam Youssef
 * @license     https://opensource.org/licenses/MIT
 *
 * MIT LICENSE
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
$message = ['Good Morning', 'Good Afternoon', 'Good Evening', 'Good Night'];

$greetingsTo = function($to) use($message){

	$time = date("H");

	if ($time < '12') return $message[0].' '.$to;

	if ($time >= '12' && $time < '17') return $message[1].' '.$to;

	if ($time >= '17' && $time < '19') return $message[2].' '.$to;

	if ($time >= '19') return $message[3].' '.$to;

};

echo $greetingsTo('Hossam');
// Good Morning Hossam
// Good Afternoon Hossam
// Good Evening Hossam
// Good Night Hossam