Screwed Up: Apache2 & PHP

I screwed up. I overwritten pre-installed PHP on Server that cause problem for Apache startup. God help me.

May 22 19:33:34 amanyus org.apache.httpd[96895]: httpd: Syntax error on line 143 of /private/etc/apache2/httpd.conf: Cannot load /usr/libexec/apache2/libphp5.so into server: dlopen(/usr/libexec/apache2/libphp5.so, 10): no suitable image found. Did find:\n\t/usr/libexec/apache2/libphp5.so: mach-o, but wrong architecture
May 22 19:33:34 amanyus com.apple.launchd[1] (org.apache.httpd[96895]): Exited with exit code: 1
May 22 19:33:34 amanyus com.apple.launchd[1] (org.apache.httpd): Throttling respawn: Will start in 10 seconds

Edit: I suspect that the libphp5.so not compiled to match the correctly architecture. So to make the apache running, I hashed out 2 lines that load php module inside /private/etc/apache2/httpd.conf. It runs but without php support. So localhost:80 show a nice Server webpage. I also notice that my computer automatically downloads a php source hehe. Because it is un-identifiable.