Warning: a form on this page has more than 1000 fields.

Warning: a form on this page has more than 1000 fields.
On submission, some of the fields might be ignored,
due to PHP's max_input_vars configuration.

フォームでPOSTされない時の対処方法 - php.ini max_input_varsの設定 | PbTimes 情報誌
max_input_vars を必要な分だけ拡張する