Re: [PHP] basic captcha

2012-02-20 Thread Alex Nikitin
Just a few notes on the previous responses. Delaying with JavaScript, like validating with JavaScript is a rather pointless endeavor. Think about it, you are putting your "limiting" mechanism, on the hackers' computer... You can still post to your server as fast as you want. With regards to using

Re: [PHP] basic captcha

2012-02-20 Thread Donovan Brooke
Savetheinternet wrote: [snip] Securimage (phpcaptcha.org) looks relatively okay.[snip] ..a final follow up with my experience implementing securimage (in the case that others go searching). This turned out to be a good solution for my purposes. It fit nicely with my form checks that were alr

Re: [PHP] basic captcha

2012-02-17 Thread Geoff Shang
On Fri, 17 Feb 2012, Ashley Sheridan wrote: I would avoid making a user type in something they see in a picture, as you've just succeeded in pissing off a bunch of blind people. Thank you! Glad someone pointed this out so I didn't have to. And if you use a system like Recaptcha which has an

Re: [PHP] basic captcha

2012-02-17 Thread Donovan Brooke
Ashley Sheridan wrote: [snip] Well, if the answer doesn't matter, another could just pick anything and run with it couldn't they? Thanks, Ash For the favorite color thing? The idea would be to require one (but not all) of the word options in the list (so answer does matter)... most bots w

Re: [PHP] basic captcha

2012-02-17 Thread Donovan Brooke
Donovan Brooke wrote: [snip] Hi Michael, this looked promising.. however, requires some GD support it appears I don't have.[snip] Hi, well, just did the test on the live server and it *does* support it there.. so I guess I use it.. just won't work in the development enviro. Thanks for the s

Re: [PHP] basic captcha

2012-02-17 Thread Donovan Brooke
Savetheinternet wrote: [snip] There are plenty of free PHP captcha scripts out there. Just google "captcha PHP". Securimage (phpcaptcha.org) looks relatively okay. Thanks, Michael Hi Michael, this looked promising.. however, requires some GD support it appears I don't have.. here is the re

Re: [PHP] basic captcha

2012-02-17 Thread Ashley Sheridan
Donovan Brooke wrote: >Thanks for all the input. Yes, there are a lot of ways and means and >issues that can be considered (thanks Simon), but this project will use > >a simple captcha, mostly because it is familiar to users and "fits" >with >the project. Yes, I've found some options via google

Re: [PHP] basic captcha

2012-02-17 Thread Donovan Brooke
Thanks for all the input. Yes, there are a lot of ways and means and issues that can be considered (thanks Simon), but this project will use a simple captcha, mostly because it is familiar to users and "fits" with the project. Yes, I've found some options via google, but was more inquiring to s

Re: [PHP] basic captcha

2012-02-17 Thread TR Shaw
On Feb 17, 2012, at 12:36 AM, Patrick Hafner wrote: > Hi, > > have you tried reCAPTCHA by Google? > You can find the PHP library on the website. > > Easy to use, customizable and free, but nothing to install on your server (no > open source) But it aid OCR to Text activities at google and al

Re: [PHP] basic captcha

2012-02-17 Thread Simon Schick
Hei, Ashley The php bugtracker himself uses just simple math. Others are made by clicking on the man's name in the picture (3 shaddows of people with names in there) ... But I myself dislike the visitor having extra-work. Therefore I'll stick to the honey-pot the referer check and so on. One chec

Re: [PHP] basic captcha

2012-02-17 Thread Ashley Sheridan
Simon Schick wrote: >Hi, all > >When you ask for a captcha, I'd first ask what do you want to use it >for. >If you read the first lines of Wikipedia it has been developed to >differ >between a real user and a bot. > >If you'd now say that you want to use it to protect spam in a formula >I'd >gi

Re: [PHP] basic captcha

2012-02-16 Thread Simon Schick
Hi, all When you ask for a captcha, I'd first ask what do you want to use it for. If you read the first lines of Wikipedia it has been developed to differ between a real user and a bot. If you'd now say that you want to use it to protect spam in a formula I'd give you the same explanation that yo

Re: [PHP] basic captcha

2012-02-16 Thread Savetheinternet
On Fri, Feb 17, 2012 at 3:40 PM, Donovan Brooke wrote: > Hello, > > Does anyone know of a basic (open source or freeware) form captcha system > for PHP? > > TIA, > Donovan > > > > > -- > D Brooke > Hi, There are plenty of free PHP captcha scripts out there. Just google "captcha PHP". Securimage

Re: [PHP] basic captcha

2012-02-16 Thread Patrick Hafner
Hi, have you tried reCAPTCHA by Google? You can find the PHP library on the website. Easy to use, customizable and free, but nothing to install on your server (no open source) Best regards, Patrick Hafner Am 17.02.2012 um 05:40 schrieb Donovan Brooke : > Hello, > > Does anyone know of a bas

[PHP] basic captcha

2012-02-16 Thread Donovan Brooke
Hello, Does anyone know of a basic (open source or freeware) form captcha system for PHP? TIA, Donovan -- D Brooke -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php