PHP Startup: Unable to load dynamic library

Question

After changing PHP version from 5.3.3 to 5.4, my sever (Centos5) did not work.

Taking it back to 5.3.3, I get the following error message from the CLI (I'm using Symfony2) :

PHP Warning:  PHP Startup: Unable to load dynamic library
'/usr/lib64/php/modules/newrelic.so'
- /usr/lib64/php/modules/newrelic.so: undefined symbol:
php_output_write in Unknown on line 0

I did a few workaround on solutions, none of them worked..

Answer 1

/usr/bin/newrelic-install
/etc/init.d/httpd restart

Did the trick. I guess that the module newrelic were not reinstalled properly.

Thanks !