[Airkish]

I want function to be triggered with 5% chance but I'm getting error

PHP Code:

number of arguments doesn't match definition 


So what I'm doing (or at least I think it should do like that)
Every round start it gets a random number from 1 to 100 if number is equal or below 5 then it does CmdKnifeRound

PHP Code:

public RoundStart() {
    if(random_num( 1, 100) <= 5) {
        CmdKnifeRound;
    }
} 


Any help?