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| 1 | NAME: | ||
| 2 | |||
| 3 | Securimage - A PHP class for creating and managing form CAPTCHA images | ||
| 4 | |||
| 5 | VERSION: 2.0 BETA | ||
| 6 | |||
| 7 | AUTHOR: | ||
| 8 | |||
| 9 | Drew Phillips <drew@drew-phillips.com> | ||
| 10 | |||
| 11 | DOWNLOAD: | ||
| 12 | |||
| 13 | The latest version can always be | ||
| 14 | found at http://www.phpcaptcha.org | ||
| 15 | |||
| 16 | DOCUMENTATION: | ||
| 17 | |||
| 18 | Online documentation of the class, methods, and variables can | ||
| 19 | be found at http://www.phpcaptcha.org/Securimage_Docs/ | ||
| 20 | |||
| 21 | REQUIREMENTS: | ||
| 22 | PHP 4.3.0 | ||
| 23 | GD 2.0 | ||
| 24 | FreeType (recommended, required for TTF support) | ||
| 25 | |||
| 26 | SYNOPSIS: | ||
| 27 | |||
| 28 | require_once 'securimage.php'; | ||
| 29 | |||
| 30 | $image = new Securimage(); | ||
| 31 | |||
| 32 | $image->show(); | ||
| 33 | |||
| 34 | // Code Validation | ||
| 35 | |||
| 36 | $image = new Securimage(); | ||
| 37 | if ($image->check($_POST['code']) == true) { | ||
| 38 | echo "Correct!"; | ||
| 39 | } else { | ||
| 40 | echo "Sorry, wrong code."; | ||
| 41 | } | ||
| 42 | |||
| 43 | DESCRIPTION: | ||
| 44 | |||
| 45 | What is Securimage? | ||
| 46 | |||
| 47 | Securimage is a PHP class that is used to generate and validate CAPTCHA images. | ||
| 48 | The classes uses an existing PHP session or creates its own if none is found to store the | ||
| 49 | CAPTCHA code. Variables within the class are used to control the style and display of the image. | ||
| 50 | The class supports TTF fonts and effects for strengthening the security of the image. | ||
| 51 | If TTF support is not available, GD fonts can be used as well, but certain options such as | ||
| 52 | transparent text and angled letters cannot be used. | ||
| 53 | |||
| 54 | |||
| 55 | COPYRIGHT: | ||
| 56 | Copyright (c) 2009 Drew Phillips. All rights reserved. | ||
| 57 | This software is released under the GNU Lesser General Public License. | ||
| 58 | |||
| 59 | ----------------------------------------------------------------------------- | ||
| 60 | Flash code created for Securimage by Douglas Walsh (www.douglaswalsh.net) | ||
| 61 | Many thanks for releasing this to the project! | ||
| 62 | |||
| 63 | ------------------------------------------------------------------------------ | ||
| 64 | Portions of Securimage contain code from Han-Kwang Nienhuys' PHP captcha | ||
| 65 | |||
| 66 | Han-Kwang Nienhuys' PHP captcha | ||
| 67 | Copyright June 2007 | ||
| 68 | |||
| 69 | This copyright message and attribution must be preserved upon | ||
| 70 | modification. Redistribution under other licenses is expressly allowed. | ||
| 71 | Other licenses include GPL 2 or higher, BSD, and non-free licenses. | ||
| 72 | The original, unrestricted version can be obtained from | ||
| 73 | http://www.lagom.nl/linux/hkcaptcha/ | ||
| 74 | |||
| 75 | ------------------------------------------------------------------------------- | ||
| 76 | AHGBold.ttf (AlteHaasGroteskBold.ttf) font was created by Yann Le Coroller and is distributed as freeware | ||
| 77 | |||
| 78 | Alte Haas Grotesk is a typeface that look like an helvetica printed in an old Muller-Brockmann Book. | ||
| 79 | |||
| 80 | These fonts are freeware and can be distributed as long as they are | ||
| 81 | together with this text file. | ||
| 82 | |||
| 83 | I would appreciate very much to see what you have done with it anyway. | ||
| 84 | |||
| 85 | yann le coroller | ||
| 86 | www.yannlecoroller.com | ||
| 87 | yann@lecoroller.com | ||
| 88 | |||
