更新php服务器上的wsdl缓存

Asp.net can update the wsdl reference. how do you update force an update the wsdl cache on php server.

i updated my web-service(wsdl) and now my php is having this error upon using the function

An uncaught Exception was encountered
Type: SoapFault

Message: Function ('-- watever function --') is not a valid method for this service

my web service is working fine. worked on my asp.net app.

and i already tried deleting my wsdl cache file like this:

$php -i | grep soap.wsdl_cache_dir
soap.wsdl_cache_dir => /tmp => /tmp
$rm -r /tmp/wsdl*

and lastly restarted my server hoping it would clear its cache.

but still i have the same issue.

p.s. i dont wanna use

ini_set("soap.wsdl_cache_enabled", 0) 

or whatever disabling my wsdl_cache because it would compromise performance.