How to check recapthc in PHP server?

Question

PHP

I put google recaptcha.
On the client side, everything started. I connected a js script with api, inserted a div with recaptcha inside the form.
Here is what Google writes about the server side:

When users submit a form with built-in reCAPTCHA validation, you get the "g-recaptcha-response" string along with other data. To find out if the user passed the verification, send a POST request with the following parameters:
secret ( key )
response ( Value "g-recaptcha-response" )

If I do var_dump($_POST), then no "g-recaptcha-response" is anywhere near there.
What am I doing wrong?

Answer 1

Here, everything is detailed
www.9lessons.info/2014/12/google-new-recaptcha-usi...

Answer 2

Check that the form submits post data
Open the panel, make sure js has inserted the field

<textarea id="g-recaptcha-response" name="g-recaptcha-response" class="g-recaptcha-response" style="width: 250px; height: 40px; border: 1px solid #c1c1c1; margin: 10px 25px; padding: 0px; resize: none;  display: none; "></textarea>