https://www.machform.com/forums/ MachForm Community Forums Topic: HELP Fatal Error! en Mon, 04 May 2026 00:07:47 +0000 https://www.machform.com/forums/topic/help-fatal-error#post-22516 Tue, 13 Jan 2015 23:31:09 +0000 alasdairdavies 22516@https://www.machform.com/forums/ <p>Hi all,</p> <p>Just a tip for anyone else that applied this fix on php installs where mbstring wasn't installed or not allowed. </p> <p>I noticed that logic is broken when mbstring is removed, but you can bypass the error - so would suggest if you plan to use logic that you install the string or get a host that supports its use. </p> https://www.machform.com/forums/topic/help-fatal-error#post-17615 Thu, 14 Mar 2013 05:28:59 +0000 conceive 17615@https://www.machform.com/forums/ <p>we enabled the extensions and it worked fine thx! : ]</p> <p>I'll definitely keep that other fix in mind for down the road though. Thx again! </p> https://www.machform.com/forums/topic/help-fatal-error#post-17553 Mon, 11 Mar 2013 12:26:29 +0000 yuniar 17553@https://www.machform.com/forums/ <p>You need to contact your hosting tech support and ask them to enable PHP mbstring extension (should be enabled on most hosting already).<br /> If for some reason they aren't able to enable it, you can edit your "includes/helper-functions.php" file.</p> <p>Search around line 1693 for this code:</p> <pre><code>$rule_keyword = addslashes(mb_strtolower($condition_params[&#39;rule_keyword&#39;],&#39;UTF-8&#39;));</code></pre> <p>change it to become:</p> <pre><code>$rule_keyword = addslashes(strtolower($condition_params[&#39;rule_keyword&#39;],&#39;UTF-8&#39;));</code></pre> <p>that should fix it. </p> https://www.machform.com/forums/topic/help-fatal-error#post-17529 Sat, 09 Mar 2013 08:19:18 +0000 conceive 17529@https://www.machform.com/forums/ <p>When I try to view my form from the admin panel...</p> <p>It started when I attempted to use the conditional logic to show and hide certain fields...</p> <p>Fatal error: Call to undefined function mb_strtolower() in C:\inetpub\machform\includes\helper-functions.php on line 1693 </p>