Learning C++ can actually help you with other languages like PHP, JavaScript, Java, etc since they all derive their styles from C++ which in turn came from C.

Java is a bit easier than C/C++ because it handles memory for you although you can still manually handle memory in Java.

Languages like PHP, ASP, etc all handle the memory for you, but that's because it is scripting, not real programming. When it comes to real programming, you would have to usually manually handle memory allocation and deallocation.

Some people work with scripting languages like PHP, JavaScript, etc and call themselves programmers but actually, they are just scripters.

If you get the chance to learn C/C++, JUMP at it. It will teach you a **** load of things about programming and you will be able to grasp other concepts in programming of other languages very easily.

If you do apply for a job as a programmer somewhere and your resume says that you've worked with C/C++ extensively, that will carry a LOT of weight.



:edit:
FYI, C++ is just C with OOP (Object Oriented Programming or methodology).
C++ was the result of an OOP based language merging with C...if I remember correct, it was a Finnish guy who was trying something out for his college project and came up with this whole OOP concept. God bless him