This question already has an answer here:
Is there any feature in development for Stack Overflow to RUN/TEST code online? I see many questions are linked to some other online tools to run and test the submitted code/corrected code.
Like the below Online Tools:
Regular-Expressions - http://gskinner.com/RegExr/
http://phpfiddle.org/ -- Greate to use
- http://ideone.com/ -- Good to Share
MySql/SQL - http://sqlfiddle.com/
htaccess Test - http://htaccess.madewithlove.be/
JSON Validator - http://jsonlint.com/
Here you Go!!
Many in one - http://www.compileonline.com/
It will be very useful to explain what has be done. It will be nice if Stack Overflow has these features.
What do you say?