if statement - php for loops how to start again after else -

I want to do something like that. Do you have ideas for this?

  === A === If (some) go back to {=== b === {else} === a ===} Thanks.    
 
 
 This is normal  while  loop.  
  $ Some = False; While (! $ Some) {// here are ==== A ==== verbs} // Here are the B verbs