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Re: PHP Newbie can't evaluate numerical string as number

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"Denis McMahon" <denismfmcmahon@gmail.com> wrote in message 
news:4eb8fcf9$0$28445$a8266bb1@newsreader.readnews.com...
> On Tue, 08 Nov 2011 09:35:02 +0000, Graham wrote:
>
>> Yes it works! (although I admit I'm not entirely sure why). Many thanks!
>> And apologies to Denis for having doubted him.
>
> Heads up - we don't top post in newsgroups. Reply goes at the bottom so
> that reading naturally down the page response is after the comment it
> applies to.
>
> If you read the php manual for eval http://uk.php.net/manual/en/
> function.eval.php , all is explained:
>
> There are two ways to get a value from eval into the script that calls
> eval:
>
> a) use return inside the eval code, and assign the value of eval to a
> variable, viz:
>
> $evalResult = eval("return $big_number - $small_number;");
> echo $evalResult;
>
> b) assign the result to a variable inside the eval code:
>
> eval("$evalResult = $big_number - $small_number;");
> echo $evalResult;
>
> These are the two methods I attempted to show in my example.
>
> Rgds
>
> Denis McMahon

I hang my head in shame!  Thinking about it, i've been critised for top 
posting before, but couldn't remember the drill as I post to newsgroups so 
rarely. Thanks for being patient and polite (unlike some). And thanks for 
the very thorough explanation which I now follow.

R's
Graham Stow 

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Thread

PHP Newbie can't evaluate numerical string as number "Graham" <graham.stow@stowassocs.co.uk> - 2011-11-07 16:25 +0000
  Re: PHP Newbie can't evaluate numerical string as number The Natural Philosopher <tnp@invalid.invalid> - 2011-11-07 16:56 +0000
  Re: PHP Newbie can't evaluate numerical string as number Denis McMahon <denismfmcmahon@gmail.com> - 2011-11-07 17:52 +0000
    Re: PHP Newbie can't evaluate numerical string as number "Graham" <graham.stow@stowassocs.co.uk> - 2011-11-08 08:41 +0000
      Re: PHP Newbie can't evaluate numerical string as number Erwin Moller <Since_humans_read_this_I_am_spammed_too_much@spamyourself.com> - 2011-11-08 09:56 +0100
        Re: PHP Newbie can't evaluate numerical string as number "Graham" <graham.stow@stowassocs.co.uk> - 2011-11-08 09:35 +0000
          Re: PHP Newbie can't evaluate numerical string as number Denis McMahon <denismfmcmahon@gmail.com> - 2011-11-08 09:57 +0000
            Re: PHP Newbie can't evaluate numerical string as number Tim Streater <timstreater@greenbee.net> - 2011-11-08 10:08 +0000
              Re: PHP Newbie can't evaluate numerical string as number Denis McMahon <denismfmcmahon@gmail.com> - 2011-11-08 17:49 +0000
            Re: PHP Newbie can't evaluate numerical string as number "Graham" <graham.stow@stowassocs.co.uk> - 2011-11-08 10:27 +0000
  Re: PHP Newbie can't evaluate numerical string as number Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-11-07 23:49 +0100
  Re: PHP Newbie can't evaluate numerical string as number Jonathan Stein <jstein@image.dk> - 2011-11-08 11:19 +0100

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