Color me stupid here, but is there a loop that doesn't require something to stop it?

I mean like:

PHP Code:
  do {
    
//blah blah, code to break in here
  

except that requires a while();

Right now I'm just doing this:

PHP Code:
  do {
    
//blah blah, code to break in here
  
} while(!= 2); 
Thanks in advance.