php multiple if conditions

Question

when i try to filter all these parameters php only enters in the first if conditions, ignoring all others conditions.

if($t_red<0){
    $t_red=0;
}

else if($         


        

Answer 1

a successfully met condition of an if (or following else if) statement will ignore all else if/else statements that immediately follow it, but the if statements afterwards are executing - You can verify this by adding echo statement to each one . Could it perhaps be because all your variable assignments are for $t_red so no action is taken on $t_green or $t_blue?