Hi Bill,

> I don't know a think about PHP.  What's a "resource" vs. and object in
> PHP?
> 

PHP 4 does not have "native objects". It uses some sort ort artifice to
emulate them using arrays. But this will change in version 5.

> 
> I just took at look at swishe.c at 
> 
>   http://cvs.sourceforge.net/viewcvs.py/swishe/swish_php/swishe.c?rev=
>   1.1&content-type=text/vnd.viewcvs-markup
> 
> Is that programmed to the current 2.4.0 API?
> 

Yep. I have it in production with PR3.

> I see these:
> 
> void _php_swishe_search_close(zend_rsrc_list_entry *rsrc)
> {
> php_swishe_search *search = (php_swishe_search *)rsrc->ptr;
> 
>     efree(search);
> }
> 
> /* destroy a resource of type "swishe_results" */
> static void _php_swishe_results_close(zend_rsrc_list_entry *rsrc) {
> php_swishe_results *results = (php_swishe_results *)rsrc->ptr;
> 
>     efree(results);
> }
> 
> 
> /* destroy a resource of type "swishe_result" */
> static void _php_swishe_result_close(zend_rsrc_list_entry *rsrc)
> {
> php_swishe_result *result = (php_swishe_result *)rsrc->ptr;
> 
>     efree(result);
> }
> 
> How are they called when using the PHP interface?
> 

I am not sure of what I am going to say because it is hard to find
documentation about this issues. I just based the code in some
samples that I could find.

I think that PHP frees the resources for you when the page ends.

How PHP is able to do that thing?
Well, the destructors (_php_swishe_close, _php_swishe_search_clos,
etc.) are registered in PHP_MINIT_FUNCTION.
Also, when an "object" is created it is also registered with its destructor.
Internally, PHP holds a list of the created objects and when the page
ends it calls the destructors for all the created objects.
So, you do not need to take care of destroying them.

I can be wrong. So, any advice is welcome.

cu
Jose