Fatal error: Uncaught Error: Call to undefined function save_html() in /home/xs622075/tokyo-shoten.or.jp/public_html/seinenbu/seinen/lib/http-140707.php:53 Stack trace: #0 /home/xs622075/tokyo-shoten.or.jp/public_html/seinenbu/seinen/lib/isbn.php(736): request('GET', 'https://www.boo...') #1 /home/xs622075/tokyo-shoten.or.jp/public_html/seinenbu/seinen/lib/isbn.php(34): search_jpo('9784575419740') #2 /home/xs622075/tokyo-shoten.or.jp/public_html/seinenbu/kumiaimap_utf8.htm(32): get_book_detail('9784575419740') #3 {main} thrown in /home/xs622075/tokyo-shoten.or.jp/public_html/seinenbu/seinen/lib/http-140707.php on line 53