What's server now and how to collect data from user and store it?

Answer 1

to collect data from user formally use form element and use method GET OR POST to store the data and fname or image as name for form

<form action="file.php"method="get">
  First name: <inputtype="text" name="fname"><br>
  Last name: <inputtype="text" name="lname"><br>
  <input type="submit"value="Submit">
</form>

to store it using PHP request variable $_GET["fname"]

$firstname = $_GET["fname"]