I am trying to install a student information system (RosarioSIS) that is PostgreSQL-driven. After installing PostgreSQL 9.6 , the system asks me to install and activate a php extension (pgsql.so). I tried 'yum install php-pgsql' command, but it didn't work for some reason. I have tried all the suggested solutions on Stackoverflow and other forums, but still no luck. The last thing I tried is unarchiving a copy of php 5.4.45 and compiling the extension manually using:
phpize
./configure
make
sudo make install
This also did not manage to add the pgsql.so to the folder extension. What do you suggest I do in order to add the required extension (pgsql.so) to where it belongs?