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

Table of Contents

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.