Helpers: htmlspecialchars() strict type fix (#229)

Author: milo

src/Forms/Helpers.php

@@ -152,7 +152,7 @@ public static function createInputList(array $items, array $inputAttrs = null, a
 			$res .= ($res === '' && $wrapperEnd === '' ? '' : $wrapper)
 				. $labelTag . $label->attributes() . '>'
 				. $inputTag . $input->attributes() . (Html::$xhtml ? ' />' : '>')
-				. ($caption instanceof Nette\Utils\IHtmlString ? $caption : htmlspecialchars($caption, ENT_NOQUOTES, 'UTF-8'))
+				. ($caption instanceof Nette\Utils\IHtmlString ? $caption : htmlspecialchars((string) $caption, ENT_NOQUOTES, 'UTF-8'))
 				. '</label>'
 				. $wrapperEnd;
 		}

tests/Forms/Helpers.createInputList.phpt

@@ -25,6 +25,11 @@ test(function () {
 		Helpers::createInputList(['a'])
 	);
 
+	Assert::same(
+		'<label><input value="0">1</label>',
+		Helpers::createInputList([1])
+	);
+
 	Assert::same(
 		'<label><input value="a">First</label><label><input value="b">Second</label>',
 		Helpers::createInputList(