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Date: Tue, 2 Aug 2011 18:00:01 +0200
Message-ID: <CAH-PCH5Cmgx46ZwH0AAUebXbBFOAiwRfQ3R96W=V4LSWatyaAg@mail.gmail.com>
To: RQuadling@gmail.com
Cc: PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] asString() method vs __toString() magic method.
From: tyra3l@gmail.com (Ferenc Kovacs)

On Tue, Aug 2, 2011 at 4:47 PM, Richard Quadling <rquadling@gmail.com> wrot=
e:
> Hi.
>
> Given the relatively simple code below, why can't I throw an exception
> in __toString()?
>
> <?php
> class AlwaysFails {
> =C2=A0public function asString() {
> =C2=A0 =C2=A0throw new Exception('Failed in asString()');
> =C2=A0}
>
> =C2=A0public function __toString() {
> =C2=A0 =C2=A0throw new Exception('Failed in __toString()');
> =C2=A0}
> }
>
> $failure =3D new AlwaysFails;
> try {
> =C2=A0echo $failure->asString();
> }
> catch(Exception $ex) {
> =C2=A0echo $ex->getMessage();
> }
>
> try {
> =C2=A0echo $failure;
> }
> catch(Exception $ex) {
> =C2=A0echo $ex->getMessage();
> }
> ?>
>
> outputs ...
>
> Failed in asString()
> Fatal error: Method AlwaysFails::__toString() must not throw an
> exception in Z:\fa1.php on line 21
>
>
>
>
> --
> Richard Quadling
> Twitter : EE : Zend : PHPDoc
> @RQuadling : e-e.com/M_248814.html : bit.ly/9O8vFY : bit.ly/lFnVea
>
> --
> PHP Internals - PHP Runtime Development Mailing List
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>

http://stackoverflow.com/questions/2429642/why-its-impossible-to-throw-exce=
ption-from-tostring


--=20
Ferenc Kov=C3=A1cs
@Tyr43l - http://tyrael.hu