Simple Anti CSRF

anti-csrf.php

<?php
/**
 * @Author: Eka Syahwan
 * @Date:   2017-05-07 17:02:09
 * @Last Modified by:   Eka Syahwan
 * @Last Modified time: 2017-05-07 17:16:45
 */
session_start();
class Security
{
	public function csrfToken(){
		$token 				= md5(date("dmY h:i:s").rand(10000,90000));
		$_SESSION['token']  = $token;
		return $_SESSION['token'];
	}

	public function csrfValidate($token){
		if($token != $_SESSION['token']){
			return false;
		}else{
			return true;
		}
	}
	public function csrfHtml(){
		echo '<input type="hidden" name="token" value="'.$this->csrfToken().'"></input>';
	}
}
$security = new Security;

how to use ?

call function csrfHtml()
for validate call function csrfValidate($_POST['token']);

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