The post you referred doesn’t mention any process for using PDO-ODBC driver to connect to Sybase. It was me who asked it. 
@formerstaff did mentioned using FreeTDS driver on Linux which I have a feeling should work. but since my DSP is already set up on windows server I was looking for a solution here. I guess I will just wait for DSP 2.0 as it promises a lot of things.
And sorry I don’t have much server side expertise to contribute my own DB integration. for simple PHP applications, I connect through the Sybase ASE ODBC driver which uses system DSN.