Sadly I have strict restrictions on what version could be used in the development (we are using a special Linux distribution).
So there are requirements:
PHP 7.0.72 + apache2
Databases
Postgres 9.6
Oracle Database 12 and 19
What version should I choose?
The additional question: does CodeIgniter natively support REST API?
Are there compatible libraries for these functions?
If Codeigniter is not an option in this case, what frameworks would you recommend instead?