I working on WIFI management system using PHP , fortigate firewall and freeradius server. every thing go fine but now I want to display real time internet usage by users in my system interface , users will access internet through fortigate so fortigate can log every things about that users, how can I access real time internet usage chart into fortigate from my system and display that chart into my system's interface , or get the value of internet usage every second .
Please help me .