From 9cf73d00b3a3afde9f78d3c74cd3f990696d14f1 Mon Sep 17 00:00:00 2001
From: Pavel Dohnal <pavel@mailpoet.com>
Date: Wed, 22 Apr 2020 10:45:47 +0200
Subject: [PATCH] Make sure the types are correct

[MAILPOET-2716]
---
 lib/Segments/WooCommerce.php | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/Segments/WooCommerce.php b/lib/Segments/WooCommerce.php
index 1119fa52ea..0ff18d41ff 100644
--- a/lib/Segments/WooCommerce.php
+++ b/lib/Segments/WooCommerce.php
@@ -139,8 +139,11 @@ class WooCommerce {
     if ($collation1 === $collation2) {
       return false;
     }
-    $charset1 = substr($collation1, 0, strpos($collation1, '_'));
-    $charset2 = substr($collation2, 0, strpos($collation2, '_'));
+    $collation1UnderscorePos = strpos($collation1, '_');
+    $collation2UnderscorePos = strpos($collation2, '_');
+
+    $charset1 = substr($collation1, 0, $collation1UnderscorePos === false ? strlen($collation1) : $collation1UnderscorePos);
+    $charset2 = substr($collation2, 0, $collation2UnderscorePos === false ? strlen($collation2) : $collation2UnderscorePos);
     return $charset1 === $charset2;
   }