王新阳

try {
    throw new Exception("错误消息", 404);
} catch (Exception $e) {
    echo "消息: " . $e->getMessage() . "\n"; // 错误消息
    echo "代码: " . $e->getCode() . "\n";     // 404
    echo "文件: " . $e->getFile() . "\n";     // 文件路径
    echo "行号: " . $e->getLine() . "\n";     // 行号
    echo "回溯: " . $e->getTraceAsString();  // 调用栈
}