<?php

defined('DEBUG') || define('DEBUG', $debug ?? $config['DEBUG'] ?? false);

if (ob_get_level() === 0) {
    ob_start();
}

function debug($msg) {
   error_log($msg);
   if (DEBUG > 1) print($msg . "\n");
}
register_shutdown_function(function () {
    $error = error_get_last();

    if ($error !== null) {
        // Log fatal error details
        $type = $error['type'];
        $message = $error['message'];
        $file = $error['file'];
        $line = $error['line'];

        echo "[SHUTDOWN] Fatal error: {$message} in {$file} on line {$line}\n";
        // Optional: log to file
        // file_put_contents('/path/to/shutdown.log', "[SHUTDOWN] ...\n", FILE_APPEND);
    } else {
        if (DEBUG > 1) {
          DEBUG && header('Content-Type: text/plain');
          # define('X','Well');
          DEBUG && print("Constants\n".print_r((get_defined_constants(true))['user']??'No Constants', true) . "\n");
          DEBUG && print("Functions\n".print_r((get_defined_functions(true))['user']??'No Functions', true) . "\n");
          DEBUG && print("Variables\n".print_r(array_diff_key(get_defined_vars(), array_flip(['_SERVER','_GET','_POST','_COOKIE', '_FILES'])), true) . "\n");
          DEBUG && print("Includes\n".print_r(get_included_files(), true) . "\n");
        }
        echo "[SHUTDOWN] Script completed normally.\n";
    }
});