What is your problem exactly? Using utf for output strings is only a matter of using an utf8 capable editor. Using it in variables, comparing and modifying content is more savy and implies looking at mulitbytes string functions (mb_*).
Well, this is just a matter of using an utf8 capable editor, font AND switch your keyboard layout (easy for Mac and linux, for Windows it might be more tricky, if possible). If you entered turkish caracters above with the keyboard, the last point is checked.
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Using utf for output strings is only a matter of using an utf8 capable editor.
Using it in variables, comparing and modifying content is more savy and implies looking at mulitbytes string functions (mb_*).
If you entered turkish caracters above with the keyboard, the last point is checked.