A simple php captcha script

**david** · 21-03-2013, 04:08 AM

This is one of the easiest CAPTCHA scripts you will ever use. While it doesn’t obscure the text, it will serve its purpose well for many people who need a low-level CAPTCHA solution. This script requires little-to-no setup. The only dependency is the PHP GD library.
Example CAPTCHA image:

It can be as simple as this to use, but it is also configurable:

<?php

session_start();

include("captcha.php");

$_SESSION['captcha'] = captcha();

echo '<img src="' . $_SESSION['captcha']['image_src'] . '" alt="CAPTCHA" />';

?>

Features:

Use one or more PNG backgrounds
Use one or more TTF or OTF fonts
Set minimum/maximum code lengths (or optionally set the code itself)
Configure which characters to use
Set minimum/maximum font size
Adjustable angle, font color, and shadow
Includes the free font “Times New Yorker” (for demo purposes) and a sample background image (default.png)

Detail and download https://github.com/claviska/simple-php-captcha

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**shunavi** · 21-03-2013, 09:24 AM

Good share, maybe it 's better than using google recaptcha because it 's too difficult for normal user

**phuc2x** · 24-03-2013, 09:44 AM

Thanks david, it save my time.

**sam051** · 12-06-2013, 09:10 AM

Captcha coding of PHP is really best for improvement of developers. All PHP developers can not resolve this issue easily so you can hire best PHP developers from CSS chopper in India. Your captcha coding doubt clear easily via doing this process.

**katejohn304** · 14-03-2019, 07:25 AM

A Simple CAPTCHA Script Using PHP. CAPTCHA means "Totally Automated Public Turing test to distinguish Computers and Humans One from the other", it's regular usefulness to use at the season of submit information to anticipate machines access of your site.