Fixed bug in htmldoc::open() where the charset could end up being set to false, which then caused the load() method to fail.

Fixed issue in tag::html() where the attribute value can be null, but it wasn't converted to a string for a string operation.
Updated dependencies.

Author: Hexydec

composer.lock

@@ -191,8 +191,8 @@ public function open(string $url, $context = null, string &$error = null) {
 			$meta = stream_get_meta_data($handle);
 			if (!empty($meta['wrapper_data'])) {
 				foreach ($meta['wrapper_data'] AS $item) {
-					if (mb_stripos($item, 'Content-Type:') === 0 && ($charset = mb_stristr($item, 'charset=')) !== false) {
-						$charset = mb_substr($charset, 8);
+					if (mb_stripos($item, 'Content-Type:') === 0 && ($value = mb_stristr($item, 'charset=')) !== false) {
+						$charset = mb_substr($value, 8);
 						break;
 					}
 				}

src/htmldoc.php

@@ -653,7 +653,7 @@ public function html(array $options = []) : string {
 
 				// double quotes
 				} else {
-					$html .= '="'.str_replace(['&', '"', '<'], ['&amp;', '&quot;', '&lt;'], $value).'"';
+					$html .= '="'.str_replace(['&', '"', '<'], ['&amp;', '&quot;', '&lt;'], strval($value)).'"';
 				}
 			}
 		}