moderni infotech

<a href="http://moderni.in/" rel="nofollow ugc">Modern-i Infotech</a>
1) Moderni is an India based Open Source Web development and designing firm.
2) We have special expertise in the CMS and Ecommerce solutions. Our inspiration behind all work is Deliverables of the high class and robust Product for Customer.
3) Moderni provide full-cycle services in the areas of web-based enterprise solutions, web application, and portal development and e-Commerce solutions.
4) Combining our solid business domain experience, technical expertise, profound knowledge of latest industry trends and quality-driven delivery model we offer progressive end-to-end web solutions.
<h4>Modern Contact Form Needs Your Support</h4>
We need support to connect with you. is it any need to change or any other functionality you need?
Its hard to continue development for this plugin without contributions like you.
If you really happy with Modern Contact Form and find it useful, please donate on our site <a href="http://moderni.in/" rel="nofollow ugc">making a donation</a> or you can check our blog on (http://moderni.in/moderni-plugin) and give feedback to us. 
Your donation will help encourage and support the plugin’s continued development and better user support.

Modern-I Contact Form

Moderni contact form plugin gives a WP most flexible and usable contact form.WP-admin can use either captcha or simple  contact form.

Takayuki Miyoshi

Really Simple CAPTCHA does not work alone and is intended to work with other plugins. It is originally created for <a href="https://contactform7.com/" rel="nofollow ugc">Contact Form 7</a>, however, you can use it with your own plugin.
Note: This product is “really simple” as its name suggests, i.e., it is not strongly secure. If you need perfect security, you should try other solutions.
<h4>How does it work?</h4>
Really Simple CAPTCHA does not use PHP “Sessions” for storing states, unlike many other PHP CAPTCHA solutions, but stores them as temporary files. This allows you to embed it into WordPress without worrying about conflicts.
When you generate a CAPTCHA, Really Simple CAPTCHA creates two files for it; one is an image file of CAPTCHA, and the other is a text file which stores the correct answer to the CAPTCHA.
The two files have the same (random) prefix in their file names, for example, “a7hk3ux8p.png” and “a7hk3ux8p.txt.” In this case, for example, when the respondent answers “K5GF” as an answer to the “a7hk3ux8p.png” image, then Really Simple CAPTCHA calculates hash of “K5GF” and tests it against the hash stored in the “a7hk3ux8p.txt” file. If the two match, the answer is confirmed as correct.
<h4>How to use with your plugin</h4>
Note: Below are instructions for plugin developers.
First, create an instance of ReallySimpleCaptcha class:
<pre><code>$captcha_instance = new ReallySimpleCaptcha();
</code></pre>
You can change the instance variables as you wish.
<pre><code>// Change the background color of CAPTCHA image to black
$captcha_instance->bg = array( 0, 0, 0 );
</code></pre>
See really-simple-captcha.php if you are interested in other variables.
Generate a random word for CAPTCHA.
<pre><code>$word = $captcha_instance->generate_random_word();
</code></pre>
Generate an image file and a corresponding text file in the temporary directory.
<pre><code>$prefix = wp_rand();
$captcha_instance->generate_image( $prefix, $word );
</code></pre>
Then, show the image and get an answer from respondent.
Check the correctness of the answer.
<pre><code>$correct = $captcha_instance->check( $prefix, $the_answer_from_respondent );
</code></pre>
If the $correct is true, go ahead. Otherwise, block the respondent — as it would appear not to be human.
And last, remove the temporary image and text files, as they are no longer in use.
<pre><code>$captcha_instance->remove( $prefix );
</code></pre>
That’s all.
If you wish to see a live sample of this, you can try <a href="https://contactform7.com/captcha/" rel="nofollow ugc">Contact Form 7</a>.

Really Simple CAPTCHA

Needed this for an installation with custom forms. I used the plugin developers instructions and was able to make a fully custom implementation based on server side validation within 30 minutes. No more spam bots misusing the forms. Thank you!

Great work - easy to implement

Really Simple CAPTCHA is a CAPTCHA module intended to be called from other plugins. It is originally created for my Contact Form 7 plugin.

Modern-I Contact Form vs Really Simple CAPTCHA