From 91876b42aa5bc15ccdf7d6dfd2974126ff767b61 Mon Sep 17 00:00:00 2001
From: "Mr. Chip" <36813506+mrchipset@users.noreply.github.com>
Date: Mon, 23 Sep 2024 10:49:47 +0800
Subject: [PATCH] Fix: fix preg_match parameter#2 $subject is null deprecated
 issue (#1798)

---
 var/Typecho/I18n/GetText.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/var/Typecho/I18n/GetText.php b/var/Typecho/I18n/GetText.php
index 677a80ed..8e91afd4 100644
--- a/var/Typecho/I18n/GetText.php
+++ b/var/Typecho/I18n/GetText.php
@@ -394,7 +394,8 @@ class GetText
             } else {
                 $header = $this->getTranslationString(0);
             }
-            if (preg_match("/plural\-forms: ([^\n]*)\n/i", $header, $regs)) {
+            
+            if (!is_null($header) && preg_match("/plural\-forms: ([^\n]*)\n/i", $header, $regs)) {
                 $expr = $regs[1];
             } else {
                 $expr = "nplurals=2; plural=n == 1 ? 0 : 1;";