$backtrace = debug_backtrace();

    // 移除当前函数调用的层级

    echo "调用栈信息：\n";

    foreach ($backtrace as $level => $call) {

        $className = (isset($call['class'])) ? $call['class'] : '';

        $methodName = $call['function'];

        $fileName = $call['file'];

        $lineNumber = $call['line'];

        echo "层级 {$level}：\n";

        echo "    类名：{$className}\n";

        echo "    方法名：{$methodName}\n";

        echo "    文件名：{$fileName}\n";

        echo "    行号：{$lineNumber}\n";

        echo "<br>";

    }