What is $_POST ?

Answer 1

$_POST gets data from a form

Answer 2

in html:
<input type="text" name="text">

in php:
$text = $_POST['text'];
echo $text

it shows the text wrote in "text" input

Answer 3

Dude, if you putting code, put all, where is isset, probably he is a newbie so you should put all code for getting infos from forms