From c5a870210619fe0cd095467eadc845dd73d8b06a Mon Sep 17 00:00:00 2001
From: Universal Omega <54654040+Universal-Omega@users.noreply.github.com>
Date: Wed, 15 Sep 2021 20:03:00 -0600
Subject: [PATCH] Fix "Trying to access array offset on value of type null"
 (#54)

---
 includes/Parameters.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/includes/Parameters.php b/includes/Parameters.php
index 182186f..614fa92 100644
--- a/includes/Parameters.php
+++ b/includes/Parameters.php
@@ -832,7 +832,7 @@ class Parameters extends ParametersData {
 	 */
 	public function _titleregexp( $option ) {
 		$data = $this->getParameter( 'title' );
-		if ( !is_array( $data['regexp'] ) ) {
+		if ( !isset( $data['regexp'] ) || !is_array( $data['regexp'] ) ) {
 			$data['regexp'] = [];
 		}
 		$newMatches = explode( '|', str_replace( ' ', '\_', $option ) );