added Objective-C
Update php.html.markdown

a few sentences to constants
Update php.html.markdown

?> instead of ? >
Started on Scala
Create Visual Basic 

Contributing Visual Basic.
Update objvectiv-C.html.markdown
Starting a Scala one
Added arrays and maps
Explained syntactic sugar is really just method calls.

Objects in ruby receive a message via the . (dot) notation. The arithmetic operators are just syntactic sugar of the . message notation.
Added for comprehensions and conditionals
Added header
Added some pattern matching
Fixing formatting
Now really adding some pattern matching
Merge remote-tracking branch 'origin/master'
Adding some strings and docs links
Added loops, iterators and regex
Fixing a typo
Fixed header
Tweaking the header