Which is Faster and better, Switch Case or if else if?

Question

Which is the better and fastest methods : if or switch ?

if(x==1){
  echo \"hi\";
} else if (x==2){
  echo \"bye\";
}

switch(x){
  case 1
    ...
  break;
          


        

Answer 1

According to phpbench.com, if/elseif is slightly faster, especially when using strict comparison (===).

But it'll only really matter if you want to shave off microseconds on a function that'll be called thousands of times.

Answer 2

It's depending on usage. If you have fxp status (online, away, dnd, offline...) its better use switch.

switch(status)
{
case 'online':
...
}

But if you wanna something like this

if ((last_reply.ContainsKey(name)) && (last_reply[name] < little_ago))

or

if (msg.ToString()[0] == '!')

its better use if else.