Replace unuseful whiles

* Replaced unuseful while's with for-loops
* Fixes #71
9 jobs for while-for in 2 minutes and 1 second (queued for 2 seconds)
Status Job ID Name Coverage
  Lint
passed #5084
lint:lint-php5.4

00:00:29

passed #5085
lint:lint-php5.6

00:00:30

passed #5086
lint:lint-php7.0

00:00:32

passed #5087
lint:lint-php7.1

00:00:29

 
  Codesniffer
passed #5088
codesniffer

00:00:41

 
  Unit
passed #5089
unit:testBasic

00:00:45

passed #5090
unit:testRead

00:00:43

passed #5091
unit:testReadAssertFail

00:00:36

passed #5092
unit:testUserProperty

00:00:34