I will arive Shanghai Hongqiao railway station 2300 hrs n want to go Pudong Airport, best option night time

It is suggested to walk to reach Hongqiao Airport to find the shuttle bus.
The last shuttle bus from from Hongqiao Airport to Pudong airport is at 23:00, so if you can catch it, it is suggested to.
If you cannot catch that bus, you can take the night line to reach East Yan'an Road, the Bund and then take a taxi to reach PVG.