Add captcha to first page of 5 registration pages in PHP

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
I need a website captcha added to my signup pages.

I get alot of spam registrations on my site and need a captach installed to prevent it.

There are 5 membership options - all 5 of these memberships need to have a captcha installed on the first step of the registration to stop bots and spammers.

The captcha must be easy to use, no complex captcha codes that are hard to read.

Correct coding to notify if code is wrong, and prevent the next step of registration which includes an email to me to notify of a new member. Every day i get spam registrations from bot filling in the first page. VERY ANNOYING.

the website address is:

The website is php based.
Write the words "FAPT" in your pmb to show you are not providing a SPAMMING bid - 95% of bids on here are copy paste spam bid crap from providers who do not read the brief. You will be ignored if you do not write these words.

Skills required:
HTML, Javascript, PHP, Script Install, Website Design
About the employer:
Public Clarification Board
Bids are hidden by the project creator. Log in as the employer to view bids or to bid on this project.
You will not be able to bid on this project if you are not qualified in one of the job categories. To see your qualifications click here.