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Groups > comp.lang.php > #14680

Re: Consistency with object to boolean conversions

From "Christoph M. Becker" <cmbecker69@arcor.de>
Newsgroups comp.lang.php
Subject Re: Consistency with object to boolean conversions
Date 2014-12-03 16:19 +0100
Organization solani.org
Message-ID <m5n9l9$djm$1@solani.org> (permalink)
References <m5n8a7$gra$1@dont-email.me>

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Gregor Kofler wrote:

> The following example should suffice to describe my problem:
> 
> 50 if(!$file) {
> 51 }
> 52 else {
> 53    echo '$file is an object.';
> 54    var_dump(!$file);
> 55 }
> 
> results in
> 
> "$file is an object.
> 
> Catchable Fatal Error: Object of class
> Symfony\Component\HttpFoundation\File\UploadedFile could not be
> converted to boolean in
> /var/www/strbase_client/src/Strbase/ClientBundle/Controller/BatchController.php
> line 54"
> 
> Why does the object to boolean conversion in the if condition in line 50
> *not* cause an error?

What gets printed when you change line 51 to:

  var_dump($file);}

I guess that answers your question.

-- 
Christoph M. Becker

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Thread

Consistency with object to boolean conversions Gregor Kofler <usenet@gregorkofler.com> - 2014-12-03 15:56 +0100
  Re: Consistency with object to boolean conversions "Christoph M. Becker" <cmbecker69@arcor.de> - 2014-12-03 16:19 +0100
    Re: Consistency with object to boolean conversions Gregor Kofler <usenet@gregorkofler.com> - 2014-12-03 16:39 +0100
      Re: Consistency with object to boolean conversions Matthew Carter <m@ahungry.com> - 2014-12-03 11:42 -0500
        Re: Consistency with object to boolean conversions Gregor Kofler <usenet@gregorkofler.com> - 2014-12-03 18:06 +0100
          Re: Consistency with object to boolean conversions Matthew Carter <m@ahungry.com> - 2014-12-03 13:13 -0500
  Re: Consistency with object to boolean conversions Denis McMahon <denismfmcmahon@gmail.com> - 2014-12-03 16:46 +0000
    Re: Consistency with object to boolean conversions Gregor Kofler <usenet@gregorkofler.com> - 2014-12-03 18:09 +0100
      Re: Consistency with object to boolean conversions "Christoph M. Becker" <cmbecker69@arcor.de> - 2014-12-03 18:22 +0100
        Re: Consistency with object to boolean conversions Gregor Kofler <usenet@gregorkofler.com> - 2014-12-03 19:12 +0100
          Re: Consistency with object to boolean conversions "Christoph M. Becker" <cmbecker69@arcor.de> - 2014-12-03 19:30 +0100
            Re: Consistency with object to boolean conversions Gregor Kofler <usenet@gregorkofler.com> - 2014-12-03 20:58 +0100

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