Basically my question is:
Can I combine the functions of proj4 with php in my server?
For example, I would like to know if it is possible get data in WGS84 and transform in ETRS89.
I need to get WGS84 data with php, then use proj4 to transform them to ETRS89 and finally use them in php.
If the answer is right, how can I configure php and proj4 to work together???