<button>поля name и value$_POST
<head> следующий тег<meta http-equiv="refresh" content="4; URL=/stranica-tri" /><?php
$json_str = '{"data": {"key": "value", "xxx": "yyy"}, "bool": true, "num": 1}';
$json_pretty = json_encode(json_decode($json_str), JSON_PRETTY_PRINT);
?>
<!DOCTYPE html>
<html lang="en">
<head></head>
<body>
<pre><?php echo $json_pretty; ?></pre>
</body>
</html>header("Location: /new/url/");
exit;$_POST а из php://input<?php
$json = file_get_contents('php://input');
$data = json_decode($json, true);
//ваши данные в $data['log'], $data['pass']
print_r($data);
<script>
window.history.replaceState({}, null, '/');
</script><li><?php if (!empty($featured_categories)): ?>
<div class="featured-categories">
<div class="categories__inner">
<div class="section-heading">Выберите категорию</div>
<ul class="categories__list">
<?php foreach ($featured_categories as $category): ?>
<li id="#" class="categories__item">
<span class="category-item__image" style="<?php echo get_category_image_url($category); ?>">
<a href="<?php echo generate_category_url($category); ?>" class="category-item">
<span class="category-item__separator"></span>
<span class="category-item__title"><?php echo category_name($category); ?></span>
</a>
</span>
</li>
<?php endforeach; ?>
</ul>
</div>
</div>
<?php endif; ?>xhr.send('ourForm_inp=' + userInput);
background-image: url(...);
background-size: cover;
background-position: center;object-fit.wrapper{
height: 100vh;
width: 100%;
position: relative;
}
.wrapper img{
object-fit: cover;
height: 100%;
width: 100%;
}