Apache can't start after upgrade PHP5, please help!

[John Song]

Hi, I'm not sure if i should post this message in this mailing list, since i can't find any mailing list which is PHP related, i just want to try my luck here.

I've got FreeBSD 5.1 with apache 1.33 + php5.03 +mysql5.0.2 running for almost a year with no problem, just recently i want to try to install Mambo on my site, i tried to upgrade php-extensions, after that, i can't get apache started. I've looked into the log, it says:

...
PHP Warning:  Function registration failed - duplicate name - posix_getpwuid in Unknown on line 0
PHP Warning:  Function registration failed - duplicate name - posix_getrlimit in Unknown on line 0
PHP Warning:  Function registration failed - duplicate name - posix_get_last_error in Unknown on line 0
PHP Warning:  Function registration failed - duplicate name - posix_errno in Unknown on line 0
PHP Warning:  Function registration failed - duplicate name - posix_strerror in Unknown on line 0
PHP Warning:  posix:  Unable to register functions, unable to load in Unknown on line 0
PHP Warning:  Unknown(): Unable to load dynamic library '/usr/local/lib/php/20020429/simplexml.so' - Cannot open "/usr/local/lib/php/20020429/simplexml.so" in Unknown on line 0
PHP Warning:  Unknown(): Unable to load dynamic library '/usr/local/lib/php/20020429/dom.so' - Cannot open "/usr/local/lib/php/20020429/dom.so" in Unknown on line 0
PHP Warning:  Unknown(): Unable to load dynamic library '/usr/local/lib/php/20020429/tidy.so' - Cannot open "/usr/local/lib/php/20020429/tidy.so" in Unknown on line 0

...
I've tried to deinstall php5-extensions and it didn't help.
then i tried to use php4 instead of php5(of coz uninstalled php5 first), it worked for a while untill i found some of functions of my forums are not working properly, i deinstalled php4 and reinstall php5 but it's NOT working, still gives the same error log, now it doesn't even work when i switch back to PHP4. 

I'm really run out of ideas, i've googled, not much help. so I'm just wondering if there is any one can help me, that'd be greatly appreciated.

Thanks in advance.

John