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File: Readme.txt

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  Classes of Ver Pangonilo   Simple CAPTCHA   Readme.txt   Download  
File: Readme.txt
Role: Documentation
Content type: text/plain
Description: Sample True Type Font file
Class: Simple CAPTCHA
Generate and verify CAPTCHA validation images
Author: By
Last change: Added note on TTF
Date: 17 years ago
Size: 2,526 bytes


Class file image Download
Projectname: Simple CAPTCHA class Version: 0.1 Author: Ver Pangonilo <> Last modified: 18 May 2006 Copyright (C): 2006 Ver Pangonilo, All Rights Reserved * GNU General Public License (Version 2, June 1991) * * This program is free software; you can redistribute * it and/or modify it under the terms of the GNU * General Public License as published by the Free * Software Foundation; either version 2 of the License, * or (at your option) any later version. * * This program is distributed in the hope that it will * be useful, but WITHOUT ANY WARRANTY; without even the * implied warranty of MERCHANTABILITY or FITNESS FOR A * PARTICULAR PURPOSE. See the GNU General Public License * for more details. Description: This class can generate CAPTCHAs for user forms. Parameters can be set on the configuration file including transprency. Note: The font "BRADHITC.TTF" is required for the default configuration. This is a common script font for Windows. A replace the default font to suit application. Usage : Create a configuration file which contains the following: <? session_start(); require_once('class.simplecaptcha.php'); /* CONFIGURATION STARTS */ //Background Image $config['BackgroundImage'] = "white.png"; //Background Color- HEX $config['BackgroundColor'] = "FFFC00"; //image height - same as background image $config['Height']=30; //image width - same as background image $config['Width']=100; //text font size $config['Font_Size']=20; //text font style $config['Font']="BRADHITC.TTF"; //text angle to the left $config['TextMinimumAngle']=15; //text angle to the right $config['TextMaximumAngle']=45; //Text Color - HEX $config['TextColor']='000000'; //Number of Captcha Code Character $config['TextLength']=6; //Background Image Transparency // 0 - Not Visible, 100 - Fully Visible $config['Transparency']=70; /* CONFIGURATION ENDS */ //Create a new instance of the captcha $captcha = new SimpleCaptcha($config); //Save the code as a session dependent string $_SESSION['string'] = $captcha->Code; ?> Save this file as captcha.php or any filename you wish to. In the html form, the usage will be <img src="PATH_TO/captcha.php" alt="captcha" width="WIDTH" height="HEIGHT" /> Limitations: 1. Initially, it only uses PNG images. 2. The image size should be the same as the background image size.