
<?php
header('Content-Type: application/json');
class ContentSpinner {
    public function spin($text) {
        return preg_replace_callback('/\{([^{}]+)\}/', function($m) {
            $options = explode('|', $m[1]);
            return $options[array_rand($options)];
        }, $text);
    }
    public function multiple($text, $count = 5) {
        $results = [];
        for ($i = 0; $i < $count; $i++) $results[] = $this->spin($text);
        return array_values(array_unique($results));
    }
}
$spinner = new ContentSpinner();
$action = $_POST['action'] ?? $_GET['action'] ?? '';
switch ($action) {
    case 'spin': echo json_encode(['result' => $spinner->spin($_POST['text'] ?? $_GET['text'] ?? '')]); break;
    case 'multiple': echo json_encode(['results' => $spinner->multiple($_POST['text'] ?? '', $_POST['count'] ?? 5)]); break;
    default: echo json_encode(['actions' => ['spin','multiple'], 'example' => '?action=spin&text={Hello|Hi} {World|Earth}']);
}