Rollover Rates... same or different from different brokers?

hi guys, can i check with you wither the rolloverates of the currencies are the same throughout all different forex brokers?

If it is not the same throughout, it means the forex broker got a say to determine the rollover rates?

Spread varies between brokers, therefore rollover/interest payments
differ between brokers.

PS There is also a spread in the rollover rates.

how often do we see 0 for both buy and sell for a currency pair in good and bad times?

0 what?

A broker is there to make money so there is never zero spread,
the only place you may find this is at an ECN broker but you will
be charged a commission to use them.