Re: how to trap eval error?
| From: | Eugene Lee | Date: | Tue, 18 Nov 2003 21:55:50 +0000 |
| Subject: | Re: how to trap eval error? | ||
| References: | 1 2 3 4 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-170182@lists.php.net to get a copy of this message | ||
On Tue, Nov 18, 2003 at 02:03:25PM -0800, david wrote:
:
: Cpt John W. Holmes wrote:
:
: > From: "david" <dzhuo@looksmart.net>
: >>
: >> if(function_exists($function)){
: >> eval('$return = $function($input);');
: >> }else{
: >> // function does not exists
: >> }
: >>
: >> which works quit nicely for now. not sure if that's a good thing to do.
: >
: > Why not just do this:
: >
: > if(function_exists($function))
: > { $return = $function($input); }
: > else
: > { //function does not exist; }
:
: because i didn't know PHP can do that. thanks for the tip! any differences
: between the 2 version in turns of performance and safety?
You don't have to invoke eval()), and you don't have to worry about
quoting issues in eval().