How can I wrap a c++ class in php extension?

I created 4 files to wrap a c++ class in php Extension.Now I want to run the code for wrapping.But I have no idea about that.How can I run the code?

I'm following the tutorial over at http://devzone.zend.com/article/4486, and here's the Graph code I have so far: vehicles.cc

#include "php_vehicles.h"
#include "car.h"

zend_object_handlers car_object_handlers;

struct car_object {
    zend_object std;
    Car *car;
};
zend_class_entry *car_ce;
void car_free_storage(void *object TSRMLS_DC)
{
    car_object *obj = (car_object *)object;
    delete obj->car; 

    zend_hash_destroy(obj->std.properties);
    FREE_HASHTABLE(obj->std.properties);

    efree(obj);
}

zend_object_value car_create_handler(zend_class_entry *type TSRMLS_DC)
{
    zval *tmp;
    zend_object_value retval;

    car_object *obj = (car_object *)emalloc(sizeof(car_object));
    memset(obj, 0, sizeof(car_object));
    obj->std.ce = type;

    ALLOC_HASHTABLE(obj->std.properties);
    zend_hash_init(obj->std.properties, 0, NULL, ZVAL_PTR_DTOR, 0);
    zend_hash_copy(obj->std.properties, &type->default_properties,
        (copy_ctor_func_t)zval_add_ref, (void *)&tmp, sizeof(zval *));

    retval.handle = zend_objects_store_put(obj, NULL,
        car_free_storage, NULL TSRMLS_CC);
    retval.handlers = &car_object_handlers;

    return retval;
}


PHP_METHOD(Car, __construct)
{
long maxGear;
    Car *car = NULL;
    zval *object = getThis();

    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &maxGear) == FAILURE) {
        RETURN_NULL();
    }

    car = new Car(maxGear);
    car_object *obj = (car_object *)zend_object_store_get_object(object TSRMLS_CC);
    obj->car = car;

}
PHP_METHOD(Car, shift)
{
}
PHP_METHOD(Car, accelerate)
{
Car *car;
    car_object *obj = (car_object *)zend_object_store_get_object(
        getThis() TSRMLS_CC);
    c