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(PHP 5, PHP 7, PHP 8)
Exception是所有用户级异常的基类。
异常消息内容
异常代码
抛出异常的文件名
抛出异常在该文件中的行号
之前抛出的异常
字符串形式的堆栈跟踪
数组形式的堆栈跟踪