, * class?: class-string, * file?: string, * function: string, * line?: int, * object?: object, * type?: string, * }> $trace * Output of `debug_backtrace()`. * * @return string Formatted stacktrace. * * @codeCoverageIgnore * @internal */ function formatStacktrace(array $trace): string { return \implode("\n", \array_map(static function (array $e, int $i): string { $line = "#{$i} "; if (isset($e["file"], $e['line'])) { $line .= "{$e['file']}:{$e['line']} "; } if (isset($e["class"], $e["type"])) { $line .= $e["class"] . $e["type"]; } return $line . $e["function"] . "()"; }, $trace, \array_keys($trace))); } /** * @return bool True if AMP_DEBUG is set to a truthy value. * @internal */ function isDebugEnabled(): bool { /** @psalm-suppress RiskyTruthyFalsyComparison */ $env = \getenv("AMP_DEBUG") ?: "0"; return match ($env) { "0", "false", "off" => false, default => $env || \defined("AMP_DEBUG") && \AMP_DEBUG, }; }