Writeing OO exteions for PHP 4.3

Hello, I want to write an OO extension in C++ for my PHP 4.3.8 under linux. I have already written some extensions in C for my own purposes, which introduce new functions to PHP. Studying the sources of ext/standard/dir.c, ext/ming/ming.c and the tutorial from J Smith (http://bugs.tutorbuddy.com/phpcpp/phpcpp/) I got already this far: I have managed to build and link the CPP sources as a shared object which can be loaded and called from PHP. I have introduced the new class to PHP using the following code in the PHP_MINIT_FUNCTION of my extension: static zend_class_entry *url_class_entry_ptr; static int le_url; function_entry url_class_functions[] = { PHP_FALIAS(url, url_init, NULL) PHP_FALIAS(set_string, url_set_string, NULL) {NULL, NULL, NULL} }; static ZEND_RSRC_DTOR_FUNC(destroy_url) {

    if (rsrc->ptr) {
        delete (Url_class*) rsrc->ptr;
        rsrc->ptr = NULL;
    }

} PHP_MINIT_FUNCTION(url) { zend_class_entry url_class_entry; INIT_CLASS_ENTRY(url_class_entry, "url", url_class_functions); url_class_entry_ptr = zend_register_internal_class(&url_class_entry TSRMLS_CC); le_url = zend_register_list_destructors_ex(destroy_url, NULL, "url", module_number); return SUCCESS; } This class can be created, and the functions (methods) can be called from PHP. Example: $url = new URL(); $url->set_string("12345"); Now my problem is, how can I save the pointer of my C++ class, created in the url_init function, and restore it in the other functions/methods: PHP_FUNCTION(url_init) { Url_class * url = new Url_class; / * code to save the address of url */ } PHP_FUNCTION(url_set_string) { Url_class *url = NULL; /* code to fetch url */ if( url != NULL ) { url->set_string(“test”); RETURN_TRUE; } RETURN_FALSE; } I could not work out how to do this, by studying the code of the OO extensions I mentioned. Can someone give me a hint, ore some example code, how to do such things? thanks Jan Gerritsen