Php updating a static variable

What are static variable in Java, and what are they for?A static variable is one that's associated with a class, not objects of that class. To keep things as simple as possible, we'll use a public static variable.The only change we need to make to the above example is to add the keyword final in there, to make 'name' a constant (in other words, to prevent it ever being changed).We should also make 'name' uppercase by convention, to indicate that it's a constant.The static count variable is set to 0 at the instant it's created, right where it's declared.But every time a the constructor is invoked subsequently (by creating a new object in the 'main' method), it increments count.

Another classic use of static is to keep count of how many objects are created from a given class.Suppose we want to count each object that's created.We need to increment a variable every time we create a new Stuff object.We can't use 'count' itself for the ID, because it changes every time a new object is created.We need to create an instance (per-object) variable to store the ID.

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