Title: CAPTCHA input not recognized Last modified: August 21, 2016 --- # CAPTCHA input not recognized * Resolved [cyee](https://wordpress.org/support/users/cyee/) * (@cyee) * [12 years, 4 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/) * Hi. When I include the CAPTCHA form element in the sign up form, it doesn’t recognize any answer and always returns “Pleast [sic] try the captcha question again.” * [http://wordpress.org/plugins/participants-database/](http://wordpress.org/plugins/participants-database/) Viewing 15 replies - 1 through 15 (of 19 total) 1 [2](https://wordpress.org/support/topic/captcha-input-not-recognized/page/2/?output_format=md) [→](https://wordpress.org/support/topic/captcha-input-not-recognized/page/2/?output_format=md) * [Sjourney](https://wordpress.org/support/users/sjourney/) * (@sjourney) * [12 years, 4 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/#post-4533158) * do you have a URL ? What version of WP and ParticipantDB are you running? (makes it easier for the dev if you include this in your post. (as a rule I do that with most of the support threads I start) * Thread Starter [cyee](https://wordpress.org/support/users/cyee/) * (@cyee) * [12 years, 4 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/#post-4533234) * Sorry, I thought the WP version would be provided because it asked for that detail when I created the thread. It’s 3.5.1, which is admittedly old; updating to the latest is imminent. * Participants Database version is the latest, as I just downloaded it and installed it on a development server. Hence no URL to provide. * Thread Starter [cyee](https://wordpress.org/support/users/cyee/) * (@cyee) * [12 years, 4 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/#post-4533299) * WordPress is now updated to 3.8, with version 1.5.4 of the Participants Database plugin. * You can see the problem on this basic set up using the plugin: [http://pdp-test.blogs.lesd.k12.or.us/submit-form/](http://pdp-test.blogs.lesd.k12.or.us/submit-form/) * I don’t see any options that would affect the behavior of the CAPTCHA setting. Once I’ve chosen CAPTCHA as a form element, it defaults to CAPTCHA validation with Signup and Read Only checked. * I could implement the alternative described [here](http://xnau.com/work-2/wordpress-plugins/?replytocom=11995): * > That version doesn’t have the capability of using a CAPTCHA. Of course, I suggest > you upgrade, but if you don’t want to do that, what I used to suggest was a > math question: for instance “What is the sum of 13 and 7?” then put as your > validation regex: /^20$/ * but obviously the new feature is more flexible. * Plugin Author [xnau webdesign](https://wordpress.org/support/users/xnau/) * (@xnau) * [12 years, 4 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/#post-4533328) * [@cyee](https://wordpress.org/support/users/cyee/), * I would like to take a closer look at this. Are you willing to email me an admin login so I can debug this? Send it to support at xnau.com * Thread Starter [cyee](https://wordpress.org/support/users/cyee/) * (@cyee) * [12 years, 4 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/#post-4533336) * Thanks for your response [@xnau](https://wordpress.org/support/users/xnau/). The regex validation approach is actually going to work better for us, since access to the form is going to be limited. * As far as providing you a login, I didn’t do much beyond a basic installation of the plugin. It is running on a networked WP installation, if that makes a difference. * Plugin Author [xnau webdesign](https://wordpress.org/support/users/xnau/) * (@xnau) * [12 years, 4 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/#post-4533353) * OK, if you’re good, that’s fine, I like to know why things don’t work and sometimes you have to look at someone else’s setup to figure it out. * [BruzLi](https://wordpress.org/support/users/bruzli/) * (@bruzli) * [12 years, 3 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/#post-4533445) * Hi xnau I have the same problem. I also have a problem wit regex, I want a text field to only allow up tu 150 characters I am using the following code but it does not seam to work [\s\S]{0,150}$, I Have tried a few other coeds but they did not seam to work either. Thank you. * Plugin Author [xnau webdesign](https://wordpress.org/support/users/xnau/) * (@xnau) * [12 years, 3 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/#post-4533446) * For your regex, you must include the delimiters in your regex. * If you are trying to limit character input, javascript will give a much better user experience, it will allow them to adapt to the restriction as they are typing without having to submit, then edit after seeing an unhelpful error message. * You troubles with the CAPTCHA are likely due to either security restrictions on your web server, or a PHP install that does not include the “bcmath” module. * [BruzLi](https://wordpress.org/support/users/bruzli/) * (@bruzli) * [12 years, 3 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/#post-4533447) * xnau thank you for your answer. We eill try your suggestions about regex – javascript. * [Pyrolobus](https://wordpress.org/support/users/pyrolobus/) * (@pyrolobus) * [11 years, 11 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/#post-4533507) * Same problem with CAPTCHA here. It doesn’t recognize the CAPTCHA to register new entries from the page front-end even if you are logged in as an admin. * [Pyrolobus](https://wordpress.org/support/users/pyrolobus/) * (@pyrolobus) * [11 years, 11 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/#post-4533508) * Just found that some members are able to submit new entries to the database but only when they don’t write in the CAPTCHA field, you even get the thank you message. Otherwise the CAPTCHA is not recognised and you cannot submit the form * Plugin Author [xnau webdesign](https://wordpress.org/support/users/xnau/) * (@xnau) * [11 years, 11 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/#post-4533509) * I suggest taking a look at your PHP error log after attempting to submit the form with a CAPTCHA. * [Pyrolobus](https://wordpress.org/support/users/pyrolobus/) * (@pyrolobus) * [11 years, 10 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/#post-4533510) * mmm this is the log, but I don’t really see anything, can you take a look? Thanks * ``` 149.171.67.155 - - [10/Jul/2014:14:38:07 +1000] "POST /wp-admin/admin-ajax.php HTTP/1.0" 200 1 149.171.67.155 - - [10/Jul/2014:14:38:08 +1000] "GET /wp-content/plugins/media-file-manager-advanced/includes/jquery-ui/jquery-ui.min.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:08 +1000] "GET /wp-content/plugins/media-file-manager-advanced/style.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:08 +1000] "GET /wp-content/plugins/participants-database/css/PDb-admin-global.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:08 +1000] "GET /wp-content/plugins/participants-database/css/xnau-utility.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:38:20 +1000] "GET /wp-includes/js/imgareaselect/imgareaselect.css?ver=0.9.8 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:38:20 +1000] "GET /wp-content/plugins/participants-database/css/PDb-admin-global.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:20 +1000] "GET /wp-content/plugins/media-file-manager-advanced/includes/jquery-ui/jquery-ui.min.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:20 +1000] "GET /wp-content/plugins/media-file-manager-advanced/style.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:20 +1000] "GET /wp-includes/js/thickbox/thickbox.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:20 +1000] "GET /wp-includes/js/mediaelement/mediaelementplayer.min.css?ver=2.13.0 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:20 +1000] "GET /wp-includes/js/mediaelement/wp-mediaelement.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:38:20 +1000] "GET /wp-content/plugins/participants-database/css/xnau-utility.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:20 +1000] "GET /wp-content/plugins/akismet/_inc/akismet.css?ver=3.0.0 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:20 +1000] "GET /wp-content/plugins/akismet/_inc/akismet.js?ver=3.0.0 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:38:20 +1000] "GET /wp-includes/css/editor.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:18 +1000] "GET /wp-admin/post.php?post=286&action=edit HTTP/1.0" 200 124957 149.171.67.155 - - [10/Jul/2014:14:38:20 +1000] "GET /wp-includes/css/dashicons.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:20 +1000] "GET /wp-includes/js/mediaelement/mediaelementplayer.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:20 +1000] "GET /wp-includes/js/mediaelement/wp-mediaelement.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:20 +1000] "GET /wp-includes/js/tinymce/skins/wordpress/wp-content.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:31 +1000] "POST /wp-admin/admin-ajax.php HTTP/1.0" 200 2380 149.171.67.155 - - [10/Jul/2014:14:38:35 +1000] "POST /wp-admin/post.php HTTP/1.0" 302 - 149.171.67.155 - - [10/Jul/2014:14:38:35 +1000] "POST /wp-admin/admin-ajax.php HTTP/1.0" 200 98 149.171.67.145 - - [10/Jul/2014:14:38:36 +1000] "GET /wp-content/plugins/media-file-manager-advanced/style.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:38:36 +1000] "GET /wp-content/plugins/participants-database/css/PDb-admin-global.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:38:36 +1000] "GET /wp-content/plugins/participants-database/css/xnau-utility.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:36 +1000] "GET /wp-content/plugins/media-file-manager-advanced/includes/jquery-ui/jquery-ui.min.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:36 +1000] "GET /wp-includes/js/thickbox/thickbox.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:36 +1000] "GET /wp-includes/js/mediaelement/wp-mediaelement.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:36 +1000] "GET /wp-includes/js/mediaelement/mediaelementplayer.min.css?ver=2.13.0 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:36 +1000] "GET /wp-includes/js/imgareaselect/imgareaselect.css?ver=0.9.8 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:38:36 +1000] "GET /wp-content/plugins/akismet/_inc/akismet.css?ver=3.0.0 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:36 +1000] "GET /wp-content/plugins/akismet/_inc/akismet.js?ver=3.0.0 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:36 +1000] "GET /wp-includes/css/editor.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:35 +1000] "GET /wp-admin/post.php?post=286&action=edit&message=1 HTTP/1.0" 200 125521 149.171.67.145 - - [10/Jul/2014:14:38:37 +1000] "GET /wp-includes/js/mediaelement/wp-mediaelement.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:37 +1000] "GET /wp-includes/css/dashicons.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:37 +1000] "GET /wp-includes/js/mediaelement/mediaelementplayer.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:37 +1000] "GET /wp-includes/js/tinymce/skins/wordpress/wp-content.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:38 +1000] "GET /wp-admin/edit.php?post_type=page HTTP/1.0" 200 99360 149.171.67.155 - - [10/Jul/2014:14:38:40 +1000] "POST /wp-admin/admin-ajax.php HTTP/1.0" 200 1 149.171.67.155 - - [10/Jul/2014:14:38:41 +1000] "GET /wp-content/plugins/media-file-manager-advanced/includes/jquery-ui/jquery-ui.min.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:41 +1000] "GET /wp-content/plugins/media-file-manager-advanced/style.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:41 +1000] "GET /wp-content/plugins/participants-database/css/xnau-utility.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:38:42 +1000] "GET /wp-content/plugins/participants-database/css/PDb-admin-global.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:38:57 +1000] "POST /wp-admin/admin-ajax.php HTTP/1.0" 200 47 149.171.67.155 - - [10/Jul/2014:14:38:57 +1000] "POST /wp-admin/admin-ajax.php HTTP/1.0" 200 2461 149.171.67.155 - - [10/Jul/2014:14:39:03 +1000] "GET /wp-content/plugins/media-file-manager-advanced/style.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:03 +1000] "GET /wp-content/plugins/media-file-manager-advanced/includes/jquery-ui/jquery-ui.min.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:03 +1000] "GET /wp-content/plugins/participants-database/css/PDb-admin-global.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:02 +1000] "GET /wp-admin/edit.php?post_type=page&orderby=title&order=asc HTTP/1.0" 200 99880 149.171.67.145 - - [10/Jul/2014:14:39:04 +1000] "GET /wp-content/plugins/participants-database/css/xnau-utility.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:13 +1000] "GET /wp-content/plugins/media-file-manager-advanced/includes/jquery-ui/jquery-ui.min.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:13 +1000] "GET /wp-content/plugins/media-file-manager-advanced/style.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:12 +1000] "GET /wp-admin/edit.php?post_type=page HTTP/1.0" 200 99453 149.171.67.145 - - [10/Jul/2014:14:39:15 +1000] "GET /wp-content/plugins/participants-database/css/PDb-admin-global.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:15 +1000] "GET /wp-content/plugins/participants-database/css/xnau-utility.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:30 +1000] "POST /wp-admin/admin-ajax.php HTTP/1.0" 200 47 149.171.67.155 - - [10/Jul/2014:14:39:39 +1000] "GET /wp-content/plugins/media-file-manager-advanced/includes/jquery-ui/jquery-ui.min.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:39 +1000] "GET /wp-content/plugins/media-file-manager-advanced/style.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:39 +1000] "GET /wp-includes/js/mediaelement/wp-mediaelement.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:39 +1000] "GET /wp-includes/js/thickbox/thickbox.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:39 +1000] "GET /wp-includes/js/imgareaselect/imgareaselect.css?ver=0.9.8 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:39 +1000] "GET /wp-content/plugins/participants-database/css/PDb-admin-global.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:39 +1000] "GET /wp-includes/js/mediaelement/mediaelementplayer.min.css?ver=2.13.0 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:39 +1000] "GET /wp-content/plugins/akismet/_inc/akismet.css?ver=3.0.0 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:39 +1000] "GET /wp-content/plugins/participants-database/css/xnau-utility.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:39 +1000] "GET /wp-content/plugins/akismet/_inc/akismet.js?ver=3.0.0 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:39 +1000] "GET /wp-includes/css/editor.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:39 +1000] "GET /wp-admin/post.php?post=1190&action=edit HTTP/1.0" 200 120686 149.171.67.155 - - [10/Jul/2014:14:39:40 +1000] "GET /wp-includes/js/mediaelement/wp-mediaelement.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:40 +1000] "GET /wp-includes/css/dashicons.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:40 +1000] "GET /wp-includes/js/mediaelement/mediaelementplayer.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:40 +1000] "GET /wp-includes/js/tinymce/skins/wordpress/wp-content.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:42 +1000] "GET /?page_id=1190 HTTP/1.0" 200 43423 149.171.67.145 - - [10/Jul/2014:14:39:43 +1000] "POST /wp-admin/admin-ajax.php HTTP/1.0" 200 1 149.171.67.155 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-includes/css/admin-bar.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-includes/css/dashicons.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-content/plugins/easing-slider/css/slideshow.min.css?ver=2.1.4.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-content/plugins/google-calendar-events/css/gce-style.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-content/plugins/participants-database/css/participants-database.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-includes/js/jquery/jquery-migrate.min.js?ver=1.2.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-content/plugins/easing-slider/js/slideshow.min.js?ver=2.1.4.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-includes/css/editor.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-content/plugins/akismet/_inc/form.js?ver=3.0.0 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-includes/js/jquery/jquery.js?ver=1.11.0 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-includes/js/admin-bar.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-includes/css/buttons.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-content/plugins/participants-database/js/shortcodes.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-includes/js/comment-reply.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-content/plugins/participants-database/js/jquery.placeholder.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-content/plugins/participants-database/js/otherselect.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-admin/js/editor.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-admin/js/word-count.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-includes/js/utils.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:39:44 +1000] "GET /wp-includes/js/quicktags.min.js?ver=3.9.1 HTTP/1.0" 304 - 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149.171.67.155 - - [10/Jul/2014:14:40:10 +1000] "GET /wp-content/plugins/participants-database/css/xnau-utility.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:10 +1000] "GET /wp-content/plugins/participants-database/css/PDb-admin-global.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:40:21 +1000] "POST /wp-admin/admin-ajax.php HTTP/1.0" 200 2463 149.171.67.155 - - [10/Jul/2014:14:40:25 +1000] "POST /wp-admin/admin-ajax.php HTTP/1.0" 200 2451 149.171.67.145 - - [10/Jul/2014:14:40:26 +1000] "POST /wp-admin/admin-ajax.php HTTP/1.0" 200 47 149.171.67.155 - - [10/Jul/2014:14:40:31 +1000] "GET /wp-includes/js/thickbox/thickbox.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:40:31 +1000] "GET /wp-includes/js/imgareaselect/imgareaselect.css?ver=0.9.8 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:31 +1000] "GET /wp-includes/js/mediaelement/mediaelementplayer.min.css?ver=2.13.0 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:31 +1000] "GET /wp-content/plugins/media-file-manager-advanced/style.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:31 +1000] "GET /wp-content/plugins/media-file-manager-advanced/includes/jquery-ui/jquery-ui.min.css?ver=PLUGIN_VERSION HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:31 +1000] "GET /wp-includes/js/mediaelement/wp-mediaelement.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:40:31 +1000] "GET /wp-content/plugins/participants-database/css/PDb-admin-global.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:40:31 +1000] "GET /wp-content/plugins/participants-database/css/xnau-utility.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:31 +1000] "GET /wp-content/plugins/akismet/_inc/akismet.css?ver=3.0.0 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:31 +1000] "GET /wp-content/plugins/akismet/_inc/akismet.js?ver=3.0.0 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:31 +1000] "GET /wp-includes/css/editor.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:40:30 +1000] "GET /wp-admin/post.php?post=309&action=edit HTTP/1.0" 200 122311 149.171.67.155 - - [10/Jul/2014:14:40:31 +1000] "GET /wp-includes/js/mediaelement/wp-mediaelement.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:31 +1000] "GET /wp-includes/css/dashicons.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:31 +1000] "GET /wp-includes/js/mediaelement/mediaelementplayer.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:31 +1000] "GET /wp-includes/js/tinymce/skins/wordpress/wp-content.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:34 +1000] "POST /wp-admin/admin-ajax.php HTTP/1.0" 200 1 149.171.67.145 - - [10/Jul/2014:14:40:50 +1000] "POST /wp-admin/admin-ajax.php HTTP/1.0" 200 47 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-includes/css/dashicons.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-content/plugins/easing-slider/css/slideshow.min.css?ver=2.1.4.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-content/plugins/participants-database/css/participants-database.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-includes/js/jquery/jquery-migrate.min.js?ver=1.2.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-includes/js/jquery/jquery.js?ver=1.11.0 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-content/plugins/easing-slider/js/slideshow.min.js?ver=2.1.4.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-includes/css/editor.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-includes/css/buttons.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-includes/js/admin-bar.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-includes/js/comment-reply.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-content/plugins/participants-database/js/shortcodes.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-content/plugins/participants-database/js/jquery.placeholder.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /?page_id=1190 HTTP/1.0" 200 40864 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-content/plugins/participants-database/js/otherselect.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-admin/js/word-count.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-admin/js/editor.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-includes/js/utils.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-includes/js/quicktags.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-includes/js/wplink.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-includes/js/tinymce/tinymce.min.js?ver=4021-20140423 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-includes/js/tinymce/plugins/compat3x/plugin.min.js?ver=4021-20140423 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:58 +1000] "GET /wp-content/plugins/participants-database/css/custom_css.php?ver=3.9.1 HTTP/1.0" 200 109 149.171.67.155 - - [10/Jul/2014:14:40:59 +1000] "GET /wp-includes/css/admin-bar.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:40:59 +1000] "GET /wp-content/plugins/google-calendar-events/css/gce-style.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:59 +1000] "GET /wp-includes/css/dashicons.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:59 +1000] "GET /wp-includes/js/mediaelement/wp-mediaelement.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:40:59 +1000] "GET /wp-includes/js/tinymce/skins/wordpress/wp-content.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:41:00 +1000] "GET /wp-includes/js/mediaelement/mediaelementplayer.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:41:10 +1000] "GET /wp-includes/css/admin-bar.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:41:10 +1000] "GET /wp-content/plugins/easing-slider/css/slideshow.min.css?ver=2.1.4.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:41:10 +1000] "GET /wp-content/plugins/google-calendar-events/css/gce-style.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:41:10 +1000] "GET /wp-includes/css/dashicons.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:41:10 +1000] "GET /wp-content/plugins/participants-database/css/participants-database.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:41:10 +1000] "GET /wp-includes/js/jquery/jquery-migrate.min.js?ver=1.2.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:41:10 +1000] "GET /wp-includes/js/jquery/jquery.js?ver=1.11.0 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:41:10 +1000] "GET /wp-content/plugins/easing-slider/js/slideshow.min.js?ver=2.1.4.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:41:08 +1000] "POST /?page_id=1190 HTTP/1.0" 200 41040 149.171.67.155 - - [10/Jul/2014:14:41:10 +1000] "GET /wp-content/plugins/participants-database/css/custom_css.php?ver=3.9.1 HTTP/1.0" 200 109 149.171.67.155 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-includes/css/editor.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-includes/js/comment-reply.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-content/plugins/participants-database/js/shortcodes.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-content/plugins/participants-database/js/otherselect.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-admin/js/word-count.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-includes/css/buttons.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-includes/js/admin-bar.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-includes/js/utils.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-content/plugins/participants-database/js/jquery.placeholder.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-admin/js/editor.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-includes/js/quicktags.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-includes/js/wplink.min.js?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-includes/js/tinymce/plugins/compat3x/plugin.min.js?ver=4021-20140423 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-includes/js/tinymce/tinymce.min.js?ver=4021-20140423 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-includes/css/dashicons.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.155 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-includes/js/mediaelement/wp-mediaelement.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-includes/js/mediaelement/mediaelementplayer.min.css?ver=3.9.1 HTTP/1.0" 304 - 149.171.67.145 - - [10/Jul/2014:14:41:11 +1000] "GET /wp-includes/js/tinymce/skins/wordpress/wp-content.css?ver=3.9.1 HTTP/1.0" 304 - ``` * Plugin Author [xnau webdesign](https://wordpress.org/support/users/xnau/) * (@xnau) * [11 years, 10 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/#post-4533511) * That is a server access log, which won’t be of help here. You’ll need to find your PHP error log. Ask your web host if you’re unclear about how to set that up. You can install a plugin (Error Log Monitor) that will show the PHP errors on your dashboard. * [Pyrolobus](https://wordpress.org/support/users/pyrolobus/) * (@pyrolobus) * [11 years, 10 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/#post-4533512) * Sorry, I copied from the wrong file. It should be this, seems that the problem is in the PDb_CAPTCHA.class.php file * ``` [Thu Jul 10 14:39:43 2014] [error] [client 149.171.67.155] PHP Warning: call_user_func(bcmul): First argument is expected to be a valid callback in /data/www/vhosts/www.neilanlab.unsw.edu.au/docs/wp-content/plugins/participants-database/classes/PDb_CAPTCHA.class.php on line 190, referer: http://www.neilanlab.unsw.edu.au/wp-admin/post.php?post=1190&action=edit [Thu Jul 10 14:40:58 2014] [error] [client 149.171.67.145] PHP Warning: call_user_func(bcmul): First argument is expected to be a valid callback in /data/www/vhosts/www.neilanlab.unsw.edu.au/docs/wp-content/plugins/participants-database/classes/PDb_CAPTCHA.class.php on line 190, referer: http://www.neilanlab.unsw.edu.au/wp-admin/edit.php?post_type=page [Thu Jul 10 14:41:10 2014] [error] [client 149.171.67.145] PHP Warning: call_user_func(bcadd): First argument is expected to be a valid callback in /data/www/vhosts/www.neilanlab.unsw.edu.au/docs/wp-content/plugins/participants-database/classes/PDb_CAPTCHA.class.php on line 190, referer: http://www.neilanlab.unsw.edu.au/?page_id=1190 ``` Viewing 15 replies - 1 through 15 (of 19 total) 1 [2](https://wordpress.org/support/topic/captcha-input-not-recognized/page/2/?output_format=md) [→](https://wordpress.org/support/topic/captcha-input-not-recognized/page/2/?output_format=md) The topic ‘CAPTCHA input not recognized’ is closed to new replies. * ![](https://ps.w.org/participants-database/assets/icon-256x256.jpg?rev=1389807) * [Participants Database](https://wordpress.org/plugins/participants-database/) * [Frequently Asked Questions](https://wordpress.org/plugins/participants-database/#faq) * [Support Threads](https://wordpress.org/support/plugin/participants-database/) * [Active Topics](https://wordpress.org/support/plugin/participants-database/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/participants-database/unresolved/) * [Reviews](https://wordpress.org/support/plugin/participants-database/reviews/) * 19 replies * 6 participants * Last reply from: [Sandra Romano](https://wordpress.org/support/users/sandraromano/) * Last activity: [11 years, 10 months ago](https://wordpress.org/support/topic/captcha-input-not-recognized/page/2/#post-4533516) * Status: resolved