From c8ecdb8e7a2b9d043f6e7d95ffae9f3a938c6be0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20FRANCE?=
 <frederic34@users.noreply.github.com>
Date: Mon, 15 Jan 2024 00:02:34 +0100
Subject: [PATCH] add function isDolValidTms

---
 htdocs/core/lib/functions.lib.php | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index c9fed272eaa..886a6473da1 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -234,6 +234,25 @@ function isModEnabled($module)
 	//return !empty($conf->$module->enabled);
 }
 
+/**
+ * isDolValidTms check if a timestamp is valid.
+ *
+ * @param  int|string|null $timestamp
+ * @return bool
+ */
+function isDolValidTms($timestamp)
+{
+	if ($timestamp == '') {
+		dol_syslog('Using empty string for a timestamp is deprecated, prefer use of null when calling page '.$_SERVER["PHP_SELF"], LOG_NOTICE);
+		return false;
+	}
+	if (is_null($timestamp) || !is_numeric($timestamp)) {
+		return false;
+	}
+
+	return true;
+}
+
 /**
  * Return a DoliDB instance (database handler).
  *