battles/user_anketa.php

<?php

use Battles\Template;
use Battles\User;

require_once 'functions.php';

if (isset($_POST['name'])) {
    User::getInstance()->profile()->setRealname($_POST['name']);
}
if (isset($_POST['hobbie'])) {
    User::getInstance()->profile()->setInfo($_POST['hobbie']);
}

if (isset($_POST['oldpsw']) && isset($_POST['newpsw'])) {
    User::getInstance()->profile()->changePassword($_POST['oldpsw'], $_POST['newpsw']);
}

if (!empty($_POST)) {
    echo User::getInstance()->profile()->save();
}

Template::header('Анкета');
?>
<a href="main.php">← на главную</a>
<h1>Анкета персонажа <?= User::getInstance()->getLogin() ?></h1>
<form method="post">
    <label>
        <input name="name" placeholder="Реальное имя" value="<?= User::getInstance()->profile()->getRealname() ?>">
        Реальное имя
    </label><br>
    <label>
        <textarea name="hobbie" placeholder="Хобби"><?= User::getInstance()->profile()->getInfo() ?></textarea>
    </label><br>
    <input name="submit" type="submit">
</form>
<h1>Безопасность</h1>
<form method="post">
    <label><input placeholder="Старый пароль" name="oldpsw"></label>
    <label><input placeholder="Новый пароль" name="newpsw"></label>
    <input type="submit">
</form>