ConFoo Montreal 2017 Calling for Papers

Exception

(PHP 5 >= 5.1.0)

導入

Exception は、すべての例外の基底クラスです。

クラス概要

Exception {
/* 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 [, Exception $previous = NULL ]]] )
final public string getMessage ( void )
final public Exception getPrevious ( void )
final public mixed getCode ( void )
final public string getFile ( void )
final public int getLine ( void )
final public array getTrace ( void )
final public string getTraceAsString ( void )
public string __toString ( void )
final private void __clone ( 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 1 note

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cHao
1 year 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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