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PHP

Ksenia Breitenmoser
Ksenia Breitenmoser
20,874 Points
Posted by Ksenia Breitenmoser
Ksenia Breitenmoser
20,874 Points

How can I use symfony response to set a content and display error message?

In a procedure addBook.php file I am trying to add the new book to the database. 

<?php
require_once __DIR__ . '/../inc/bootstrap.php';

$bookTitle = request()->get('title');
$bookDescription = request()->get('description');

try {
    $newBook = addBook($bookTitle, $bookDescription);
    $response = \Symfony\Component\HttpFoundation\Response::create(null, \Symfony\Component\HttpFoundation\Response::HTTP_FOUND, ['Location' => '/books.php']);
    $response->send();
    exit;
}
catch (\Exception $e) {
    $response = \Symfony\Component\HttpFoundation\Response::create(null, \Symfony\Component\HttpFoundation\Response::HTTP_FOUND, ['Location' => '/add.php']);
    $response->send();
    exit;
}

The question is: in case we catch an error and redirected back to add.php file, how can I make sure that the values that user entered (title and description) can be inserted in the form automatically? And how can I transfer a message: "Make sure you have all the fields filled in" and display it on add.php?
Please do not explain with sessions as I do not yet have authentication in my app.

Thank you very much