PHP-Code in pdo_CRUD/02_step/create.php

<?php
require('prefs/credentials.php');
require('class/SimpleCRUD.class.php');
$superhero = new SimpleCRUD($host, $user, $passwd, $dbname);

if (isset($_POST['go'])) {
	// Hier müssten unbedingt Sicherheitsvorkehrungen getroffen werden...
	$vornameVal = $_POST['vorname'];
	$nachnameVal = $_POST['nachname'];
	$bemerkungenVal = $_POST['bemerkungen'];
	$lastID = $superhero -> createMethod($vornameVal,$nachnameVal,$bemerkungenVal);
	$feedback = "<div class=\"feedback_positive\">";
	$feedback .= "Die Angaben wurde gespeichert. Die ID des eingefügten Datensatzes ist ".$lastID;
	$feedback .= "</div>\n";
}
else {
	$feedback = "<div class=\"feedback_negative\">";
	$feedback .= "Das Formular wurde noch nicht verschickt.";
	$feedback .= "</div>\n";
	$vornameVal = "";
	$nachnameVal = "";
	$bemerkungenVal = "";
}
?>
<!DOCTYPE html>
<html lang="de">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Validierung E-Mail Adresse</title>
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Roboto+Condensed&family=Roboto:ital,wght@0,400;0,500;1,400&display=swap" rel="stylesheet">
    <link rel="stylesheet" href="/css/styles.css">
    <link rel="stylesheet" href="/css/formstyles.css">
</head>
<body>
    <div id="container">
    <?php include("inc/navigation.php"); ?>
        <h1>CRUD-Beispiel: Create</h1>
        
        <?=$feedback?>
        <form action="" method="post">
            <div class="form_control">
                <label for="vorname">Vorname:</label>
                <input type="text" id="vorname" name="vorname" value="<?=$vornameVal?>">
            </div>
            
            <div class="form_control">
                <label for="nachname">Nachname:</label>
                <input type="text" id="nachname" name="nachname" value="<?=$nachnameVal?>">
            </div>

            <div class="form_control">
                <label for="bemerkungen">Bemerkungen:</label>
                <textarea id="bemerkungen" name="bemerkungen" cols="50" rows="6"><?=$bemerkungenVal?></textarea>
            </div>
            <div class="form_control">
                <button type="submit" name="go" class="btn btn-blue">Speichern</button>
            </div>
        </form>
    </div>
</body>
</html>