Merge pull request #81 from wiris/v4.9.1

V4.9.1
wiris · Sep 27, 2023 · 43f3938 · 43f3938
2 parents 13372cb + 6310cc0
commit 43f3938
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/quizzes/lib/php/Boot.class.php b/quizzes/lib/php/Boot.class.php
@@ -377,6 +377,10 @@ function _hx_has_field($o, $field) {
 }
 
 function _hx_index_of($s, $value, $startIndex = null) {
+	if ($s == null || $value == null) {
+		return -1;
+	}
+
 	if ($startIndex == null) {
 		$x = strpos($s, $value);
 	} else {
@@ -415,6 +419,11 @@ function _hx_is_numeric($v)
 }
 
 function _hx_last_index_of($s, $value, $startIndex = null) {
+
+	if ($s == null || $value == null) {
+		return -1;
+	}
+
 	if ($startIndex == null) {
 		$x = strrpos($s, $value);
 	} else {