The captcha iself helps to prevent sending forms by robots.
Our component (com_idcaptcha) and plugin (plg_idcaptcha) work together. Component com_idcaptcha generates a picture and places its encrypted code into the session variable. Plugin plg_idcaptcha is designed to integrate the captcha into all forms using the class JForm and provide a verification of the captcha.
The plugin and the component will be used automatically in all forms where there is a captcha type field.
Captcha Customization Features IdCaptcha:
- setting a background color or a random selection of a background color;
- selection of transparent and non-transparent background;
- setting a background image or a random image from a folder;
- setting a font color or a random selection of color for each character;
- setting a font or a random selection of fonts for each character from the font set;
- setting the character size or selection of a random size from a given interval for each character;
- setting an interval for a random selection of an interval between characters;
- setting an interval for a random selection of tilt angles of characters;
- setting noise (lines, pixels, circles), their number and brush thickness;
- selection of distortion;
- setting vowel and consonant admissible character sets;
- setting the case sensitivity for input characters;
- setting an encryption mode of a cryptocode (SHA1 or MD5);
- setting a limit on a number of invalid inputs of captcha;
- setting limits on a number and a time interval of captcha updates;
- PHP version 5.3 and above
- Joomla 2.5.х
Installation and setup of the component and the plugin in Joomla 2.5
- download the archive and extract it;
- install the captcha component and plugin in Joomla 2.5 separately;
- publish the plugin IdCaptcha;
- adjust the captcha settings in the IdCaptcha component's settings;
- in general site's settings select plg_idcaptcha plugin to be used in the forms
- if you want to use this captcha in user registration, password recovery and login reminder forms, you should also select the usage of plugin plg_idcaptcha in the user manager.
File: zip (751,1 КБ)
Download: iDCaptcha (Joomla 2.5 captcha component and plugin)