Update Json.php

Author: loekvangool

src/File/Json.php

@@ -17,7 +17,7 @@ class Json extends AbstractFile
         'escape' => '\\',
         'join' => '_',
         'null' => null,
-        'excel_utf8_fix' => false
+        'utf8_encoding' => false
     ];
 
     /**
@@ -44,7 +44,7 @@ public function convert(): string
     protected function toCsvString(array $data): string
     {
         $f = fopen('php://temp', 'wb');
-        if($this->conversion["excel_utf8_fix"]) {
+        if($this->conversion["utf8_encoding"]) {
           fprintf($f, chr(0xEF).chr(0xBB).chr(0xBF));
         }
         $this->putCsv($f, array_keys(current($data)));