PHP 7.4.0RC4 Released!

Exception

(PHP 5, PHP 7)

はじめに

Exception は、PHP 5 ではすべての例外の基底クラスです。 PHP 7 では、すべてのユーザー例外の基底クラスとなります。

PHP 7 より前は、ExceptionThrowable インターフェイスを実装しませんでした。

クラス概要

Exception implements Throwable {
/* プロパティ */
protected string $message ;
protected int $code ;
protected string $file ;
protected int $line ;
/* メソッド */
public __construct ([ string $message = "" [, int $code = 0 [, Throwable $previous = NULL ]]] )
final public getMessage ( void ) : string
final public getPrevious ( void ) : Exception
final public getCode ( void ) : mixed
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
}

プロパティ

message

例外メッセージ

code

例外コード

file

例外が作られたファイル名

line

例外が作られた行

目次

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User Contributed Notes 2 notes

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35
whysteepy at gmail dot com
1 year ago
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
up
31
cHao
5 years ago
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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