https://www.machform.com/forums/ MachForm Community Forums Topic: Fatal error: Undefined class constant 'MYSQL_ATTR_USE_BUFFERED_QUERY' en Sun, 03 May 2026 23:09:18 +0000 https://www.machform.com/forums/topic/fatal-error-undefined-class-constant-mysql_attr_use_buffered_query-1#post-24790 Sat, 30 Jan 2016 06:08:06 +0000 yuniar 24790@https://www.machform.com/forums/ <p>johannasophia -- I suggest to contact your hosting tech support directly. It's pretty much depends on when they did the update on your server </p> https://www.machform.com/forums/topic/fatal-error-undefined-class-constant-mysql_attr_use_buffered_query-1#post-24775 Fri, 29 Jan 2016 02:36:16 +0000 johannasophia 24775@https://www.machform.com/forums/ <p>Me too, same problem! How long has this been going on??? </p> https://www.machform.com/forums/topic/fatal-error-undefined-class-constant-mysql_attr_use_buffered_query-1#post-24711 Mon, 18 Jan 2016 11:25:52 +0000 Mlandres 24711@https://www.machform.com/forums/ <p>I just discovered I had the same problem! Uggh!<br /> Luckily, I contacted Bluehost and it was a quick fix, I used the notes above to help diagnose the problem. Thank you!! </p> https://www.machform.com/forums/topic/fatal-error-undefined-class-constant-mysql_attr_use_buffered_query-1#post-24689 Wed, 13 Jan 2016 05:37:02 +0000 yuniar 24689@https://www.machform.com/forums/ <p>We just recently notified that BlueHost (and any other hosting under the same group such as HostGator, Hostmonster, JustHost), have updated the PHP version on most of their servers.</p> <p>However, one of the extension needed by MachForm (PHP PDO MySQL) is not being configured properly with the new update.<br /> I suggest to contact your hosting tech support and let them know. They should be able to fix this.</p> <p>None of your forms or data are lost, so no worries about this part. </p> https://www.machform.com/forums/topic/fatal-error-undefined-class-constant-mysql_attr_use_buffered_query-1#post-24688 Wed, 13 Jan 2016 05:25:50 +0000 stefpuff 24688@https://www.machform.com/forums/ <p>I am having the same problem!! Worked yesterday but then stopped working last night. SOOO frustrating. I use this all the time and am praying none of our old forms are lost </p> https://www.machform.com/forums/topic/fatal-error-undefined-class-constant-mysql_attr_use_buffered_query-1#post-24687 Wed, 13 Jan 2016 04:43:47 +0000 KHulbert 24687@https://www.machform.com/forums/ <p>Hello. I have had my MachForm set up for several years and today when I went to log on and build a new form I got this message: </p> <p>Fatal error: Undefined class constant 'MYSQL_ATTR_USE_BUFFERED_QUERY' in /home2/blipinti/public_html/blipintime/machform/includes/db-core.php on line 13</p> <p>I am baffled as it's worked seamlessly for such a long time and for whatever reason has now crashed. I have quite a bit of client data there so I want to make sure I do not lose it but also need to have my forms back up and running as I use them with ALL of my clients.</p> <p>Thanks in advance for your help. </p>