- Modernized code a bit and added variables to blocks

src/Extension/TitleExtension.php

@@ -23,7 +23,7 @@ class TitleExtension implements Extension, FunctionExtension {
                 "} ?>";
     }
     
-    public function handleTitle(? string $set = null, ...$arguments) : ? string
+    public function handleTitle(null|\Stringable|string $set = null, ...$arguments) : ? string
     {
         if ( $set === null ) {
             return $this->title;
@@ -31,6 +31,7 @@ class TitleExtension implements Extension, FunctionExtension {
         else {
             # Fixed a bug where template inheritance was rewriting title
             if ( empty($this->title) ) {
+                $set = (string) $set;
                 $this->title = $arguments ? sprintf($set, ...$arguments) : $set;
             }
         }

src/Extension/UrlExtension.php

@@ -138,9 +138,9 @@ PATTERN;
     }
 
     # src: https://stackoverflow.com/a/14550919
-    public static function slug(string $text, string $separator = '-') : string
+    public static function slug(\Stringable|string $text, string $separator = '-') : string
     {
-        $clean = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $text);
+        $clean = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', (string) $text);
         $clean = preg_replace("/[^a-zA-Z0-9\/_| -]/", '', $clean);
 
         return preg_replace("/[\/_| -]+/", $separator, strtolower(trim($clean, '-')));