See
http://br2.php.net/manual/en/function.create-function.php


Regards,
Igor Escobar
Systems Analyst & Interface Designer

+ http://blog.igorescobar.com
+ http://www.igorescobar.com
+ @igorescobar (twitter)





On Tue, Mar 30, 2010 at 10:23 AM, David Otton <
phpm...@jawbone.freeserve.co.uk> wrote:

> On 30 March 2010 14:16, Andre Polykanine <an...@oire.org> wrote:
>
> > I need a quoted_printable_encode function but it's available only
> > since PHP 5.3. How do I redefine that function only if PHP version is
> > lower than 5.3?
>
> function_exists().
>
> if (!function_exists('myfunc')) {
>    function myfunc() {
>        ;
>    }
> }
>
> http://uk3.php.net/function_exists
>
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