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Exception

(PHP 5, PHP 7)

简介

Exception是所有异常的基类。

类摘要

Exception {

/* 属性 */

protected string $message ;

protected int $code ;

protected string $file ;

protected int $line ;

/* 方法 */

public __construct ([ string $message = "" [, int $code = 0 [, Throwable $previous = NULL ]]] )

final public getMessage ( void ) : string

final public getPrevious ( void ) : Throwable

final public getCode ( void ) : int

final public getFile ( void ) : string

final public getLine ( void ) : int

final public getTrace ( void ) : array

final public getTraceAsString ( void ) : string

public __toString ( void ) : string

final private __clone ( void ) : void

}

属性

message: 异常消息内容
code: 异常代码
file: 抛出异常的文件名
line: 抛出异常在该文件中的行号

Exception::__construct — 异常构造函数
Exception::getMessage — 获取异常消息内容
Exception::getPrevious — 返回异常链中的前一个异常
Exception::getCode — 获取异常代码
Exception::getFile — 创建异常时的程序文件名称
Exception::getLine — 获取创建的异常所在文件中的行号
Exception::getTrace — 获取异常追踪信息
Exception::getTraceAsString — 获取字符串类型的异常追踪信息
Exception::__toString — 将异常对象转换为字符串
Exception::__clone — 异常克隆

User Contributed Notes

whysteepy at gmail dot com 28-Jan-2018 07:55


Lists of Throwable and Exception tree as of 7.2.0



    Error

      ArithmeticError

        DivisionByZeroError

      AssertionError

      ParseError

      TypeError

        ArgumentCountError

    Exception

      ClosedGeneratorException

      DOMException

      ErrorException

      IntlException

      LogicException

        BadFunctionCallException

          BadMethodCallException

        DomainException

        InvalidArgumentException

        LengthException

        OutOfRangeException

      PharException

      ReflectionException

      RuntimeException

        OutOfBoundsException

        OverflowException

        PDOException

        RangeException

        UnderflowException

        UnexpectedValueException

      SodiumException 



Find the script and output in the following links:

https://gist.github.com/mlocati/249f07b074a0de339d4d1ca980848e6a

https://3v4l.org/sDMsv



posted by someone here http://php.net/manual/en/class.throwable.php

cHao 27-Sep-2014 06:34


Note that an exception's properties are populated when the exception is *created*, not when it is thrown.  Throwing the exception does not seem to modify them.



Among other things, this means:



* The exception will blame the line that created it, not the line that threw it.



* Unlike in some other languages, rethrowing an exception doesn't muck up the trace.



* A thrown exception and an unthrown one look basically identical.  On my machine, the only visible difference is that a thrown exception has an `xdebug_message` property while an unthrown one doesn't.  Of course, if you don't have xdebug installed, you won't even get that.

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Exception

简介

类摘要

属性

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User Contributed Notes

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