PHP get_method/call_method leak?

config.m4

PHP_ARG_ENABLE(hello, whether to enable Hello
World support,
[ --enable-hello   Enable Hello World support])

if test "$PHP_HELLO" = "yes"; then
  AC_DEFINE(HAVE_HELLO, 1, [Whether you have Hello World])
  PHP_NEW_EXTENSION(hello, hello.c, $ext_shared)
fi

foo.php

<?php

$foo = new Hello();
var_dump($foo);

echo "--- direct method call ---\n";
var_dump($foo->blar());
var_dump($foo->blar());
var_dump($foo->blar());

echo "--- call_user_func calls ---\n";
var_dump(call_user_func([ $foo, 'blar' ]));
var_dump(call_user_func([ $foo, 'blar' ]));
var_dump(call_user_func([ $foo, 'blar' ]));

hello.c

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "php.h"
#include "php_hello.h"

zend_class_entry *php_ce_hello;
static zend_object_handlers hello_object_handlers;


static void php_hello_free_storage(void *object, zend_object_handle handle TSRMLS_DC)
{
    zend_object *c = (zend_object *) object;
    zend_object_std_dtor(c TSRMLS_CC);
    efree(c);
}

static zend_object_value php_hello_new(zend_class_entry *ce TSRMLS_DC)
{
    zend_object_value retval;
    zend_object *c;

    c = (zend_object *) ecalloc(1, sizeof(*c));
    zend_object_std_init(c, ce TSRMLS_CC);

    retval.handle = zend_objects_store_put(c, NULL, (zend_objects_free_object_storage_t) php_hello_free_storage, NULL TSRMLS_CC);
    retval.handlers = &hello_object_handlers;

    return retval;
}


static zend_function *php_hello_get_method(zval **object_ptr, char *method, int method_len, const zend_literal *key TSRMLS_DC)
{
    zend_function *f;
    f = (zend_function *) ecalloc(1, sizeof(*f));
    f->type = ZEND_OVERLOADED_FUNCTION_TEMPORARY;
    f->common.function_name = estrndup(method, method_len);
    return f;
}   

static int php_hello_call_method(const char *method, INTERNAL_FUNCTION_PARAMETERS)
{
    RETURN_LONG(this_ptr->refcount__gc);
}


static PHP_MINIT_FUNCTION(hello)
{
    zend_class_entry ce;

    INIT_CLASS_ENTRY(ce, "Hello", NULL);
    php_ce_hello = zend_register_internal_class(&ce TSRMLS_CC);
    php_ce_hello->create_object = php_hello_new;

    memcpy(&hello_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
    hello_object_handlers.get_method = php_hello_get_method;
    hello_object_handlers.call_method = php_hello_call_method;
}




zend_module_entry hello_module_entry = {
#if ZEND_MODULE_API_NO >= 20010901
    STANDARD_MODULE_HEADER,
#endif
    PHP_HELLO_WORLD_EXTNAME,
    NULL,
    PHP_MINIT(hello),
    NULL, // MSHUTDOWN
    NULL, // RINIT
    NULL, // RSHUTDOWN
    NULL, // MINFO
#if ZEND_MODULE_API_NO >= 20010901
    PHP_HELLO_WORLD_VERSION,
#endif
    STANDARD_MODULE_PROPERTIES
};

#ifdef COMPILE_DL_HELLO
ZEND_GET_MODULE(hello)
#endif

php_hello.h

#ifndef PHP_HELLO_H
#define PHP_HELLO_H 1

#define PHP_HELLO_WORLD_VERSION "1.0"
#define PHP_HELLO_WORLD_EXTNAME "hello"

PHP_FUNCTION(hello_world);

extern zend_module_entry hello_module_entry;
#define phpext_hello_ptr &hello_module_entry

#endif