From f5b3890721d30093bdcce9cd0af30a7567dbfc89 Mon Sep 17 00:00:00 2001
From: NASDAMI Quatadah <Quatadah.Nasdami@bordeaux-inp.fr>
Date: Mon, 13 Jun 2022 15:47:31 +0200
Subject: [PATCH] BUG FIX: checking if array is empty with empty() function
 instead of comparing it to a boolean

---
 htdocs/core/class/evalmath.class.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/htdocs/core/class/evalmath.class.php b/htdocs/core/class/evalmath.class.php
index ccd495bb623..78221de5c98 100644
--- a/htdocs/core/class/evalmath.class.php
+++ b/htdocs/core/class/evalmath.class.php
@@ -374,7 +374,7 @@ class EvalMath
 	 */
 	private function pfx($tokens, $vars = array())
 	{
-		if ($tokens == false) {
+		if (empty($tokens)) {
 			return false;
 		}