Regular Expressions Websites
perlmonks.org
A community committed to sharing Perl knowledge and coding tips. The site contains questions and answers, useful...
63,315 
$ 212,400.00
onlinephpfunctions.com
OnlinePHPFunctions, test run and execute all PHP functions online in your browser
98,213 $ 136,800.00
regexone.com
RegexOne provides a set of interactive lessons and exercises to help you learn regular expressions
98,480 $ 136,080.00