Support for writing php extensions

Dear all, I am looking for the place to get support for writing a php extension. Just wondering if this is the right place. I am looking to create a custom class where I can overload the operators of the class. I have found an old extension called operator-0.3 authored by Sara Golemon <pollita@php.net>, whom I noticed is CC'ed in the messages here. I just looked over her code, and was trying to make sense of it, but as it stands, I found a dearth of documentation on overloading php class operations. Is this the right place to ask for help for zend interfaces such as php_operator_zval_ptr, etc? Thanks in advance for your help! Gabriel