PHP5 no longer supports mysql by default, if you need her to support MySQL, need to manually configure:
The configuration is as follows: (Apache2.52 php5.0.3 mysq4.1.8)
Will ./libmysql.dll
./EXT/PHP_MYSQLI.DLL
./EXT/PHP_MYSQL.DLL
These three files copied one part to C: / Windows / System32
Modify the PHP profile, modify "; extension = php_mysql.dll" to remove the semicolil in front, re-execute Apache is OK.