PHP extension connect to Mysql

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C++

PHP

MySQL

I have tried to connect MySQL with C++ and MySQL connector. My simple PHP extension "Hello World" run normally, but when I added a function to access MySQL, so Wamp not working. I hope receice your supports. Thank you very much, I am sorry about my English skill. My code like follow.

// dll_ver_01.cpp : Defines the exported functions for the DLL application.
//

#include "stdafx.h"


ZEND_FUNCTION(fetch_talkphp_links);
ZEND_FUNCTION(haha);

zend_function_entry dll_ver_01_functions[] = {
    //ZEND_FE(fetch_talkphp_links, NULL)
	ZEND_FE(haha, NULL)
    {NULL, NULL, NULL}
};

zend_module_entry dll_ver_01_module_entry = {
    STANDARD_MODULE_HEADER,
    "dll_ver_01",
    dll_ver_01_functions,
    NULL, NULL, NULL, NULL, NULL,
    "1.0",
    STANDARD_MODULE_PROPERTIES
};

ZEND_GET_MODULE(dll_ver_01);

ZEND_FUNCTION(fetch_talkphp_links)
{
    bool useHtml = false;
    char *link = "";

    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|b", &useHtml) == FAILURE)
    {
        RETURN_STRING("Missing Parameter", true);
    }

    if (useHtml == true)
    {
        link = "<a href=\"http://www.google.com.vn\">Google</a>";
    }
    else
    {
        link = "http://www.google.com.vn";
    }
    RETURN_STRING(link, true);
}  

PHP_FUNCTION(haha)
{
	sql::Driver *driver;
	sql::Connection *con;
	sql::Statement *stmt;
	sql::ResultSet *res;

	driver = get_driver_instance();
	con = driver->connect("tcp://127.0.0.1:3306","root","");
	/*try{
	//khoi tao 1 connection
		//driver = get_driver_instance();
		con = driver->connect("tcp://127.0.0.1:3306","root","");
		//chon db
		con->setSchema("ql_laptop");
		stmt = con->createStatement();

		//truy van don gian
		stmt->execute("INSERT INTO admin(MaAdmin, Password, Ten, Loai) VALUES ('hehehe', 'a', 'aaaaaa', 1)");
	}
	catch(sql::SQLException &e)
	{
		RETURN_STRING("ma truong anh",true);
	}
	RETURN_STRING("ma truong anh",true);
	//giai phong con tro
	delete stmt;
	delete con;*/
	RETURN_STRING("ma truong anh",true);
}

I have tried to debug, so I think method driver = get_driver_instance(); makes Wamp not working.