<?php

header('Content-Type: application/json; charset=utf-8');

echo json_encode([
    'php_version' => PHP_VERSION,
    'loaded_ini' => php_ini_loaded_file(),
    'extension_dir' => ini_get('extension_dir'),
    'mbstring_loaded' => extension_loaded('mbstring'),
    'mb_split_exists' => function_exists('mb_split'),
], JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT);