Usage: WHILE (<expression>) <statement>
       WHILE (<expression>) {<statements>}

  This executes the given <statement(s)> for as long as <expression>
  returns true.  All of the boolean comparison operators may be used
  (see IF for a detailed description).  The expression is re-evaluated
  after each iteration of the loop, such that:

    WHILE ( count < 10 ) {
       echo I like repeating myself
       @ count++
    }

  would echo "I like repeating myself", then increment $count in each
  loop iteration, terminating the loop when $count reaches 10 (note
  that this demonstrates why one must be cautious, as an infinite loop
  could be created if the expression can never return true).

  WHILE follows the same rules for expressions, statements, and braces
  as IF; see that helpfile for more information.

See Also:
  @
  IF
  UNLESS
  UNTIL
  expressions
