MySQL database connection reset solution for PHP 64-bit system

Test Libmysql tutorials are copied into windows/system32 and Libmysql.dll under Apache/bin.
Of course, the most convenient way is:
In Apache:
LoadFile d:/php Tutorial/php5.2.13/libmysql.dll
Only above this line, MySQL can be successfully misappropriated.
My server version: Win7
Apache 2.2.13
PHP 5.2.13
mysql5.1.37
phpmyadmin3.3.2
Here's my Apache department outfit.
Phpinidir d:/php/php5.2.13 #不是必须
LoadFile D:/php/php5.2.13/php5ts.dll
LoadFile D:/php/php5.2.13/libmysql.dll
LoadModule Php5_module D:/php/php5.2.13/php5apache2_2.dll
AddType application/x-httpd-php. php