PHP | Get input name through $_POST[]

Question

HTML example:

Answer 1

You can process $_POST in foreach loop to get both names and their values, like this:

foreach ($_POST as $name => $value) {
   echo $name; // email, for example
   echo $value; // the same as echo $_POST['email'], in this case
}

But you're not able to fetch the name of property from $_POST['email'] value - it's a simple string, and it does not store its "origin".