[PrO.GameR]

Always lay a simple foreach loop, when you reach your desired result (or exact opposite of it in some cases) break or return, that way your control structures are simple and you run into infinite loops less (which is a bane to most of the coders)
Here's an example

PHP код:

GenerateUniqueNum()
{
new generatednum=random(10);
 foreach(new i : Players)
 {
  if(Number[i]==generatednum)
  {
   return GenerateUniqueNum();
  }
 }
 return generatednum;
}