Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:54288
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Received-SPF: pass (pb1.pair.com: domain gmail.com designates 209.85.216.42 as permitted sender)
MIME-Version: 1.0
Reply-To: RQuadling@GMail.com
Date: Tue, 2 Aug 2011 15:47:38 +0100
Message-ID: <CAKUjMCV3E-QUzaw8Q5Lp2+Z51+DsHgGFACpe_5kx_ePBcL47Wg@mail.gmail.com>
To: PHP internals <internals@lists.php.net>
Content-Type: text/plain; charset=UTF-8
Subject: asString() method vs __toString() magic method.
From: rquadling@gmail.com (Richard Quadling)

Hi.

Given the relatively simple code below, why can't I throw an exception
in __toString()?

<?php
class AlwaysFails {
  public function asString() {
    throw new Exception('Failed in asString()');
  }

  public function __toString() {
    throw new Exception('Failed in __toString()');
  }
}

$failure = new AlwaysFails;
try {
  echo $failure->asString();
}
catch(Exception $ex) {
  echo $ex->getMessage();
}

try {
  echo $failure;
}
catch(Exception $ex) {
  echo $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