PHP - unable to load dynamic library

"unable to load dynamic library" since you don't add PHP path directory to the PATH on windows.

There are several steps to add the path on windows :

1. go to "Computer"

2. go to "System properties"

3. go to "Advanced system settings"

4. click button "environment variables.."

5.  go to panel "System variables"

6. find out variable "path" and enter your path at the end of "Variable value"

 i.e. %SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;c:\Program Files\Microsoft SQL Server\90\Tools\binn\;C:\AppServ\php5

Edit "php.ini"

extension_dir ="C:\AppServ\php\extensions"