Handle case when $array_token is false + add a test for it

Author: rodrigoprimo

WordPress/Sniffs/WP/OptionAutoloadSniff.php

@@ -243,7 +243,7 @@ private function handle_wp_set_option_autoload_values( array $options_param ) {
 			true
 		);
 
-		if ( false === isset( Collections::arrayOpenTokensBC()[ $this->tokens[ $array_token ]['code'] ] ) ) {
+		if ( false === $array_token || false === isset( Collections::arrayOpenTokensBC()[ $this->tokens[ $array_token ]['code'] ] ) ) {
 			// Bail if the first non-empty token in the parameter is not an array opener as this
 			// means it is not possible to determine the option names and autoload values passed to
 			// wp_set_option_autoload_values().

WordPress/Tests/WP/OptionAutoloadUnitTest.2.inc

@@ -0,0 +1,8 @@
+<?php
+
+/*
+ * Intentional parse error (missing parameter value after parameter name).
+ * This should be the only test in this file.
+ */
+
+wp_set_option_autoload_values(options:);