Question

I have faced a problem in all of my php projects is that since i used OOP is that if there is a user submitting a form

when it goes to processing it and if it has an error i save a message in the session and redirect them to the same page

this is a sample and of course when it redirects it wipes all the fields that was there

like let’s say i have a register form that had

<?php if(!empty($message)) { echo $message } ?>
<form action ="forms/register.php">
first name: <input type="text" name="first_name" />
username:<input type="text" name="username" />
<input type="submit" value = "submit" />
</form>

and this is what the code in forms/register.php

  if(isset($_POST['submit'])) {
    $first_name = $_POST['first_name'];
    $username = $_POST['username'];

 if(empty($first_name) || empty($username) {
    $session -> message("please fill in all the fields");
    redirect("../register.php");
 } else {
    // do something else like insert query
 }

 }

my problem is if first_name or user_name is empty and it redirects to register.php

and it echos the error message no problem in that

but the fields are empty the first_name and the user_name are empty

so the user has to fill it all again

so one of my friends suggested to save it in the session or something

so i would like to know if that is possible then how and what i mean by how so nobody would get it wrong, i mean the way not the code to just copy it and paste it

Thanks in advance

and sorry for being long and annoying

Answer 1

You can store whatever values you want to keep persisted in the form after the page redirects in session variables, then retrieve those values on the form page and echo them in the value attribute of the form elements.