T_OBJECT_OPERATOR syntax error

[eluser]CheekyGeek[/eluser]
Solved it by turning on "invisibles" in BBEdit and saw there was a different character of some kind (not spaces or tabs). Did a BBEdit search and replace to get rid of the weird characters and replace with tabs and now it works. Anybody have any idea what they are or how they got there? I copied and pasted the model code from a tutorial web page. Image of the invisibles here:

http://cgi.unk.edu/tmp/what-the.png

I'm going to paste the characters in code to see if they show up here:

Code:

   

Edit: They don't show up, but if you drag your cursor you can select them.