- Added array return type if key is incomplete

src/I18n.php

@@ -44,16 +44,16 @@ class I18n implements MissingKeyInterface
         return $loaded;
     }
 
-    public function fromKey(string $key, array $variables) : ?string
+    public function fromKey(string $key, array $variables) # : ?string|array
     {
         if ( null === ( $string = $this->get($key) ) ) {
-            $string = $this->missingKey ? $this->missingKey->get($key) : null;            
+            $string = $this->missingKey ? $this->missingKey->get($key) : null;
         }
-            
-        if (is_array($string)) {
-            $string = json_encode($string);
-        }
-                    
+
+        #if (is_array($string)) {
+        #    $string = json_encode($string);
+        #}
+
         return $string && $variables ? $this->placeVariables($string, $variables) : $string;
     }
 
@@ -130,7 +130,7 @@ class I18n implements MissingKeyInterface
     }
 
     protected function placeVariables(string $string, array $parameters) {
-        if ( preg_match_all('~{$(.*?)}~si', $string, $matches, PREG_SET_ORDER) ) {
+        if ( preg_match_all('~\\{\\$(.*?)\\}~si', $string, $matches, PREG_SET_ORDER) ) {
             $search = [];
 
             foreach($matches as $item) {