The best replacement for while loop is for loop.

The best alternatives to while loop are rated as following:
★★★★★  for loop
★★  cursor
★  do while
★  while loop
★  do while loop
★  recursion
★  for loop is faster
★  cursor sql server
  foreach
  if statement
  do loop
  cursor sybase
  for

Your alternative for while loop is not listed? Suggest!
Speaking about while loop, one probably shouldn't forget about array php.

Other search terms related to while loop and their ratings are:
★★★★★ array php
★★★★ fgets
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while loop
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