From 59871345648657d063a53cd55307ba920f329536 Mon Sep 17 00:00:00 2001
From: limad <35463455+limad@users.noreply.github.com>
Date: Sun, 10 Nov 2024 20:47:24 +0100
Subject: [PATCH] Update system.class.php

Prevent PHP8 warning on trim() while param is null
---
 core/class/system.class.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/core/class/system.class.php b/core/class/system.class.php
index 08146c2c28..d3e6147c0c 100644
--- a/core/class/system.class.php
+++ b/core/class/system.class.php
@@ -114,7 +114,11 @@ public static function ps($_find, $_without = null) {
 				$cmd .= ' | grep -v "' . $value . '"';
 			}
 		}
-		$results = explode("\n", trim(shell_exec($cmd)));
+		$execCmd = shell_exec($cmd);
+      		if(!$execCmd){
+			return $return;
+          	}
+		$results = explode("\n", trim($execCmd));
 		if (!is_array($results) || count($results) == 0) {
 			return $return;
 		}