
Captcha not displaying
- Jan
- Phoca Hero
- Posts: 48726
- Joined: 10 Nov 2007, 18:23
- Location: Czech Republic
- Contact:
Re: Captcha not displaying
Hi, maybe there is some error message which is displayed before image is rendering, so the image cannot be rendered, try to look at your error log, maybe you will find some error message there 

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- Phoca Newbie
- Posts: 5
- Joined: 21 May 2009, 19:33
Re: Captcha not displaying
Hello Jan, thank you for your reply. I have tried to check the error log, but I'm not an experienced programmer so it's hard for me to decipher the code. I'm not quite sure what I should be looking for. The captcha image still won't show.
I am not using SEF. I have noticed that others have experienced some problems with this enabled, but that is not the case for me as it is.
I really can't see what could be wrong, but I do hope that it is possible to solve. With the captcha off, I get at least one spam message a day in my guestbook. I'm grateful for the "review" feature, so at least those messages won't be published on my site..
Thanks for any help on the issue!
Best regards.
I am not using SEF. I have noticed that others have experienced some problems with this enabled, but that is not the case for me as it is.
I really can't see what could be wrong, but I do hope that it is possible to solve. With the captcha off, I get at least one spam message a day in my guestbook. I'm grateful for the "review" feature, so at least those messages won't be published on my site..
Thanks for any help on the issue!
Best regards.
- Jan
- Phoca Hero
- Posts: 48726
- Joined: 10 Nov 2007, 18:23
- Location: Czech Republic
- Contact:
Re: Captcha not displaying
Hi, mostly there is some error or warning which is rendered before the image is displayed (there is no problem with displaying html as it ignores it) so looking at error log and finding some error message maybe help. Sometime bad encoding rendered before image does problems too.
Jan

Jan
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- Phoca Newbie
- Posts: 5
- Joined: 21 May 2009, 19:33
Re: Captcha not displaying
Hello,
I still haven't been able to solve the problem with the captcha image not displaying.
I'm wondering if there is any possibility to use some external captcha application instead, to intergrate with the Phoca Guestbook.
I get several spam messages a day without the captcha function, along with messages which include some forbidden words I have specified.
I'm very grateful for help or suggestions.
Thanks for an otherwise great extension!
I still haven't been able to solve the problem with the captcha image not displaying.
I'm wondering if there is any possibility to use some external captcha application instead, to intergrate with the Phoca Guestbook.
I get several spam messages a day without the captcha function, along with messages which include some forbidden words I have specified.
I'm very grateful for help or suggestions.
Thanks for an otherwise great extension!

- Jan
- Phoca Hero
- Posts: 48726
- Joined: 10 Nov 2007, 18:23
- Location: Czech Republic
- Contact:
Re: Captcha not displaying
Hi, as I know, there is no such external solution for Captcha in Phoca Guestbook. Mostly the problem with captcha is caused by:
- not installed GD library
- some error is rendered before image is rendered (can be found in error log on server)
- bad encoding will produce some characters which are rendered before image is rendered
- wrong url to captcha image is created
Jan
- not installed GD library
- some error is rendered before image is rendered (can be found in error log on server)
- bad encoding will produce some characters which are rendered before image is rendered
- wrong url to captcha image is created
Jan
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- Phoca Newbie
- Posts: 2
- Joined: 29 Jul 2009, 16:03
Re: Captcha not displaying
Hi there!
I found out, that it is a link problem. When I create an new menu item and link it to phoca guestbook and then activate the phocaguestbook in the component parameters by using standard captcha, it suddenly works. So there must be an false declaration in the database entries.
Best regards,
Manuel
I found out, that it is a link problem. When I create an new menu item and link it to phoca guestbook and then activate the phocaguestbook in the component parameters by using standard captcha, it suddenly works. So there must be an false declaration in the database entries.
Best regards,
Manuel