How to rotate two strings or functions on page refresh? - php

Question

I have two values, i want to echo one of them on page refresh and rotate it.
If the two values are Hello and Hi.
Hello > Page refresh > Hi > Page refresh >Hello > Page Refresh > Hi
I tried shuffle, rand, mt_rand but sometimes it just keep the same value instead of rotating to the next.
Thanks.

Answer 1

<?php
session_start();
if (!isset($_SESSION["count"])) $_SESSION["count"] = 0;
$_SESSION["hits"]++;
echo ($_SESSION["hits"]%2 == 1?"Hi":"Hello");
// or with functions
if ($_SESSION["hits"]%2 ==1){
my_func_1();
} else {
my_func_2();
}
its basically a page hit counter with logic on what to print depending on if the page hits are even or odd.

Answer 2

To rotate the string, something random is definitively not what you are seeking.
First to have to decide the scope of the rotation.
Based on the distributed page from the server ? (odd pages hays hi) or based on the user that si visiting you (so the rotation is always visible to you, ever if other users have also the rotation)
I guess you want based on user:
So you have to link the rotation to the user that visit you,
that can be managed through a cookie or through a PHP session
set the cookie and based on the value, say hello or hi
// before sending headers
$say = isset($_COOKIE['say'])?$_COOKIE['say']:1;
setCookie('say', $say==1?2:1);
if ($say == 1)
echo "hello";
else
echo "hi";
You can do the same thing with a PHP session
That gives you an idea