How to use the rand () function in php

This article mainly introduces how to use rand() function in php, which has certain reference value. Interested friends can refer to it. I hope you will gain a lot after reading this article. Let Xiaobian take you to understand it together.

@session_start(); $currentTime = time(); $changeTime = 10; $rand = ''; if(isset($_SESSION['time'])) { if(($currentTime - $_SESSION['time']) >= $changeTime) { $_SESSION['time'] = $currentTime; $rand = (0, 9999); $_SESSION['rand'] = $rand; }else{ $rand = $_SESSION['rand']; } }else{ $_SESSION['time'] = $currentTime; $rand = (0, 9999); $_SESSION['rand'] = $rand; } | | |Thank you for reading this article carefully, I hope Xiaobian shared "How to use rand() function in php" This article is helpful to everyone, but also hope that everyone will support more, pay attention to industry information channels, more relevant knowledge waiting for you to learn!