回复： [PHP-DEV] 回复： [PHP-DEV] How should I call a PHP function

Hi Derick,  
> On Mon, 18 Aug 2014, Wei Dai wrote:
>  
> > > I'm trying to call a function inside a module, a PHP_FUNCTION.
> > >  
> > > Other than zend_eval_stringl, what's the direct way to do it?
> >  
> > Please refer to call_user_function and call_user_function_ex.
>  
> Actually, you need to be careful with this. If you are calling another  
> PHP function in the same extension, do *not* use call_user_function.  
> Instead, create a common C function that you can call from whereever you  
> need to. call_user_function(_ex) is not fast.
>  
i agree.  

here is a scenario:

i was wrote an extension, and i need to call some PHP function like “strtr (http://lxr.php.net/s?defs=strtr&project=PHP_5_4)”  “*trim"  or a function in  
another extension but it doesn’t have a common C function. However, i don’t want to copy the implement
code into my extension.

so, i have two options:

1. copy the duplicate code into my extension, It can be fast in this way, but the code is not beautiful.
2. call call_user_function(_ex) , it’s slower than the first option, but the code is more simple and beautiful than the first option.


cheers,
Wei Dai