php的saprfc扩展无法正常工作

I am a SAP-ABAP begginer and I need to fetch the data from SAP through PHP for my company need.

I have installe:

  • WAMP Version 2.2
  • Apache Version : 2.2.22
  • PHP Version : 5.3.13
  • SAPRFC Version is 1.4.1

Added php_saprfc_530.dll to the php ext directory and added extension to php.ini

On restart of Apache, application event reported this error:

PHP Startup: saprfc: Unable to initialize module Module compiled with build ID=API20090626,TS PHP compiled with build ID=API20090626,TS,VC6

I have been struggling with this error for the past two days. How can I fix it?