PHP - Animated Captcha

xrvel · 02-18-2008, 11:55 PM

Hi, i want to share my animated captcha script.
Maybe you want to use it in your website or such

Image demo :
http://upload.kapanlagi.com/images/t...e8671176-t.gif
http://upload.kapanlagi.com/images/t...e867d7c5-t.gif
????: NamePros.com http://www.namepros.com/code/434273-php-animated-captcha.html
http://upload.kapanlagi.com/images/t...e86822bb-t.gif

Download link :
http://dy.xrvel.googlepages.com/animatedcaptcha.zip

Last modified : November, 18th, 2008.

Improve your captcha !

Code:

Create more background images with image editor to improve your background combination.
Use more TTF fonts to improve your font combination.
Use various text color.

History :

Code:

Version 1,4,1new property "regenerate_session_id" (boolean) (PHP 4 >= 4.3.2, PHP 5).
  if true, session id is regenerated when a user enters invalid guess.
  I believe this slightly improves the captcha defense against automation / bot.
  Please check "animatedcaptcha_example.php" for detail.
  But warning, all related data in $_SESSION are destroyed too.
More fonts are included.
More and larger background images.
Random alphabets are used as character set (a-z). The previous one used (a-f and 0-9)
Random string length on captcha generator file.
Some code change.

Version 1,3,2More distortion option.
Only the letters and grids are distorted.
The background is not distorted.
More fix.

Version 1,3,1Add background from GIF file to the captcha. (the old one used plain background).
Add some distortion in the letters.
Grid numbers are reduced.
Please check your old captcha file ("animatedcaptcha_generate.php" in the example), and replace it with the new one.
Recommended frame number is 2 now. (size +- 7-8 kb)

kleszcz · 02-19-2008, 10:30 PM

Interesting captcha. Thanks xrvel. Rep added.

xrvel · 02-19-2008, 10:40 PM

Hi, Hiroki.

Thank you. I hope this script is useful

Kurniawan.

RickM · 03-27-2008, 06:40 PM

Nice one! This should help stop the spambots!

What license is it released under (if any)?

Rick

xrvel · 03-27-2008, 08:00 PM

Originally Posted by RickM

Nice one! This should help stop the spambots!
????: NamePros.com http://www.namepros.com/showthread.php?t=434273

What license is it released under (if any)?

Rick

Thank you Rick

You can use it freely

- Kurniawan

DeViAnThans3 · 03-28-2008, 12:53 AM

Oh my, this is a very nice script!
Well done! (rep added)

weblord · 03-28-2008, 12:58 AM

this one's easier to read compared to e-gold.com's scrolling captcha

xrvel · 03-28-2008, 01:10 AM

Thank you for using my script

I hope this script helps to stop the bot

- Kurniawan.

liam_d · 05-01-2008, 04:04 AM

Just checked it out and that is very cool, thanks pal

xrvel · 05-01-2008, 04:46 AM

Thanks, i'm glad it's useful

- Kurniawan

**-Nick-** · 05-01-2008, 06:07 AM

That is awesome script. Great one.

Thanks a lot for sharing it with all of us

humair4 · 07-11-2008, 02:15 PM

thanks it's great

netguy33 · 07-11-2008, 03:41 PM

Deleted

itnashvillecom · 07-11-2008, 06:10 PM

Very nice, just a bit nauseating. lol

xrvel · 07-12-2008, 09:25 PM

Thank you

Last update is July 11th 2008

kleszcz · 07-16-2008, 11:20 AM

Thanks xrvel. What's new on this new update?

xrvel · 07-19-2008, 02:41 AM

Last modification was a little fix on "validate" function

xrvel · 07-20-2008, 08:29 PM

Modification added. Still need some distortion function

wicked_gal00 · 08-04-2008, 12:53 PM

Nice job. I think the trick with captchas is that now that they need to get so complicated you still need to make it less annoying for the user to deal with it. I've even read about a captcha scheme that makes a 3D scene with a few objects and asks you where some objects are in relation to others.

xrvel · 08-18-2008, 03:37 AM

Originally Posted by wicked_gal00

Nice job. I think the trick with captchas is that now that they need to get so complicated you still need to make it less annoying for the user to deal with it. I've even read about a captcha scheme that makes a 3D scene with a few objects and asks you where some objects are in relation to others.

I found some 3D example on http://spamfizzle.com/CAPTCHA.aspx. Interesting. Thank you for the information. I think this is the limit of 2D captcha

Barrucadu · 08-18-2008, 04:46 AM

Nice script, if I create something that requires a CAPTCHA, I'll be sure to use it

nasaboy007 · 09-20-2008, 10:51 AM

Perfect. I've been meaning to put a captcha onto my contact form, but i just got around to it. all the captchas i found were too much of a pain to install, this was perfect.

Rep'd!

xrvel · 09-23-2008, 05:07 AM

Nice. Thank you for using this

xrvel · 11-18-2008, 06:21 PM

I have updated the script with these changes :

new property "regenerate_session_id" (boolean) (PHP 4 >= 4.3.2, PHP 5).
????: NamePros.com http://www.namepros.com/showthread.php?t=434273
if true, session id is regenerated when a user enters invalid guess.
I believe this slightly improves the captcha defense against automation / bot.
Please check "animatedcaptcha_example.php" for detail.
But warning, all related data in $_SESSION are destroyed too.
More fonts are included.
More and larger background images.
Random alphabets are used as character set (a-z). The previous one used (a-f and 0-9)
Random string length on captcha generator file.
Some code change.

ezimedia · 11-18-2008, 11:58 PM

HI

How does one add this to a script to protect it from spam...

Do you have instructions..

Tom

02-19-2008, 10:30 PM	#2 (permalink)
kleszcz Join Date: Jul 2006 Posts: 4,607 Follow @cvul	Interesting captcha. Thanks xrvel. Rep added. __________________ juegosjuegos Your Hotel in Austria Matratzen Domain Acquisition \| Store all your favorite links! \| Web Proxies Proxy List \| Bookmarks \| Creative Enquiry \| Web Proxy List

02-19-2008, 10:40 PM	THREAD STARTER #3 (permalink)
xrvel i love automation Join Date: Nov 2007 Location: xrvel.com Posts: 1,620 Follow @xrvel	Hi, Hiroki. Thank you. I hope this script is useful Kurniawan. __________________ Xrvel \| Free Wordpress Plugins \| Desain \| Bodoh \| WP License

03-27-2008, 06:40 PM	#4 (permalink)
RickM Senior Member Join Date: Sep 2005 Location: Herts, UK Posts: 3,796	Nice one! This should help stop the spambots! What license is it released under (if any)? Rick __________________ RickM Web Design Forums - Over 22,000 Web Designers & Programmers just like you! WSDReg - Affordable Domain Registration. Serving NP members since 2006!

03-28-2008, 12:58 AM	#7 (permalink)
weblord NamePros Legend Join Date: Dec 2005 Location: Philippines - www.Nabaza.com Posts: 19,785	this one's easier to read compared to e-gold.com's scrolling captcha __________________ Nabaza.com - Amaia

03-28-2008, 01:10 AM	THREAD STARTER #8 (permalink)
xrvel i love automation Join Date: Nov 2007 Location: xrvel.com Posts: 1,620 Follow @xrvel	Thank you for using my script I hope this script helps to stop the bot - Kurniawan. __________________ Xrvel \| Free Wordpress Plugins \| Desain \| Bodoh \| WP License

03-28-2008, 12:53 AM	#6 (permalink)
DeViAnThans3 Account Closed Join Date: Apr 2006 Location: Belgium Posts: 442	Oh my, this is a very nice script! Well done! (rep added)

05-01-2008, 04:04 AM	#9 (permalink)
liam_d The original NP Emo Kid Join Date: Jan 2005 Location: Plymouth, UK Posts: 1,693 Follow @upurtweet	Just checked it out and that is very cool, thanks pal __________________ Gaming On Linux - Because Linux is Fun!

05-01-2008, 04:46 AM	THREAD STARTER #10 (permalink)
xrvel i love automation Join Date: Nov 2007 Location: xrvel.com Posts: 1,620 Follow @xrvel	Thanks, i'm glad it's useful - Kurniawan __________________ Xrvel \| Free Wordpress Plugins \| Desain \| Bodoh \| WP License

05-01-2008, 06:07 AM	#11 (permalink)
-Nick- I'll do it Join Date: Dec 2005 Location: India Posts: 6,927 Follow @keralpatel	That is awesome script. Great one. Thanks a lot for sharing it with all of us __________________ Delq\|Fhur\|Kegh\|Vhir\|Juhy\|Ruuz\|Jyos\|Jupt\|Vhek Webmaster Blog \| Software Downloads Makeup & Beauty Tips \| Sponsor Ads

07-11-2008, 02:15 PM	#12 (permalink)
humair4 New Member Join Date: Jun 2008 Posts: 18	thanks it's great

07-11-2008, 03:41 PM	#13 (permalink)
netguy33 NamePros Member Join Date: Jul 2008 Posts: 43	Deleted Last edited by netguy33; 05-10-2009 at 06:19 AM.

07-11-2008, 06:10 PM	#14 (permalink)
itnashvillecom Account Closed Join Date: Jun 2008 Posts: 156	Very nice, just a bit nauseating. lol

07-12-2008, 09:25 PM	THREAD STARTER #15 (permalink)
xrvel i love automation Join Date: Nov 2007 Location: xrvel.com Posts: 1,620 Follow @xrvel	Thank you Last update is July 11th 2008 __________________ Xrvel \| Free Wordpress Plugins \| Desain \| Bodoh \| WP License

07-16-2008, 11:20 AM	#16 (permalink)
kleszcz Join Date: Jul 2006 Posts: 4,607 Follow @cvul	Thanks xrvel. What's new on this new update? __________________ juegosjuegos Your Hotel in Austria Matratzen Domain Acquisition \| Store all your favorite links! \| Web Proxies Proxy List \| Bookmarks \| Creative Enquiry \| Web Proxy List

07-19-2008, 02:41 AM	THREAD STARTER #17 (permalink)
xrvel i love automation Join Date: Nov 2007 Location: xrvel.com Posts: 1,620 Follow @xrvel	Last modification was a little fix on "validate" function __________________ Xrvel \| Free Wordpress Plugins \| Desain \| Bodoh \| WP License

07-20-2008, 08:29 PM	THREAD STARTER #18 (permalink)
xrvel i love automation Join Date: Nov 2007 Location: xrvel.com Posts: 1,620 Follow @xrvel	Modification added. Still need some distortion function __________________ Xrvel \| Free Wordpress Plugins \| Desain \| Bodoh \| WP License

08-04-2008, 12:53 PM	#19 (permalink)
wicked_gal00 Senior Member Join Date: Jun 2003 Location: Toronto Posts: 2,383	Nice job. I think the trick with captchas is that now that they need to get so complicated you still need to make it less annoying for the user to deal with it. I've even read about a captcha scheme that makes a 3D scene with a few objects and asks you where some objects are in relation to others.

08-18-2008, 04:46 AM	#21 (permalink)
Barrucadu Senior Member Join Date: Aug 2005 Location: East Yorkshire, England Posts: 2,689 Follow @barrucadu	Nice script, if I create something that requires a CAPTCHA, I'll be sure to use it __________________ Website \| Blog Arch Hurd developer; GNU Webmaster; FSF member #8385

09-20-2008, 10:51 AM	#22 (permalink)
nasaboy007 Senior Member Join Date: Jul 2005 Location: NJ Posts: 1,219	Perfect. I've been meaning to put a captcha onto my contact form, but i just got around to it. all the captchas i found were too much of a pain to install, this was perfect. Rep'd! __________________ Hacksar.com - Your source for random computer tips and tricks! MySiteMemberships.com - Keep track of your site registration information! Like my post? Rep is appreciated!

09-23-2008, 05:07 AM	THREAD STARTER #23 (permalink)
xrvel i love automation Join Date: Nov 2007 Location: xrvel.com Posts: 1,620 Follow @xrvel	Nice. Thank you for using this __________________ Xrvel \| Free Wordpress Plugins \| Desain \| Bodoh \| WP License

11-18-2008, 06:21 PM	THREAD STARTER #24 (permalink)
xrvel i love automation Join Date: Nov 2007 Location: xrvel.com Posts: 1,620 Follow @xrvel	Yummy Update I have updated the script with these changes : new property "regenerate_session_id" (boolean) (PHP 4 >= 4.3.2, PHP 5). ????: NamePros.com http://www.namepros.com/showthread.php?t=434273 if true, session id is regenerated when a user enters invalid guess. I believe this slightly improves the captcha defense against automation / bot. Please check "animatedcaptcha_example.php" for detail. But warning, all related data in $_SESSION are destroyed too. More fonts are included. More and larger background images. Random alphabets are used as character set (a-z). The previous one used (a-f and 0-9) Random string length on captcha generator file. Some code change. __________________ Xrvel \| Free Wordpress Plugins \| Desain \| Bodoh \| WP License

11-18-2008, 11:58 PM	#25 (permalink)
ezimedia Senior Member Join Date: Dec 2003 Location: IllawarraClassifieds.com.au Posts: 2,361 Follow @ezimedia	HI How does one add this to a script to protect it from spam... Do you have instructions.. Tom __________________ My Domains @ Bido.com - Take a LOOK and Vote Or Bid Free Directory Submitter - More Free Seo Tools - Free Forum Poster Software

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PHP - Animated Captcha

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