Hey @6120,
Sorry but I do not understand what are you actually say.
No “intl” does not include in the server or cakephp project its include in your XAMPP, WAMP, or MAMPP and if it does not include then you need to install it manually
I am pasting here a URL I think its help you to manually install :
How to Enable INTL PHP Extension for MAMP on OSX 10.9.2 - Page Wood - Page Wood (pagegwood.com)