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I am using some method to autoload helper files with functions. The only problem I am having now, is how to call the variables in that class.
Because I am not instantiating it as an object, $this won't work. But what will?
class some_helperclass {
var $some_variable = '007';
public static function some_func()
{
//return 'all ok';
if (self::some_variable !== FALSE)
{
return self::ip_adres;
}
}
I can call the function from anywhere now with the help of spl_autoload_register().
some_helperclass:: some_func();
372
A static method doesn't have access to the class and instance variables because it does not receive an implicit first argument like self and cls . Therefore it cannot modify the state of the object or class. The class method can be called using ClassName.
A static member variable: • Belongs to the whole class, and there is only one of it, regardless of the number of objects. Must be defined and initialized outside of any function, like a global variable. It can be accessed by any member function of the class. Normally, it is accessed with the class scope operator.
Class variables are also known as static variables, and they are declared outside a method, with the help of the keyword 'static'. Static variable is the one that is common to all the instances of the class. A single copy of the variable is shared among all objects.
A static member function can be called even if no objects of the class exist and the static functions are accessed using only the class name and the scope resolution operator ::. A static member function can only access static data member, other static member functions and any other functions from outside the class.
You have to use self::$some_variable. Put the $ in there.
http://www.php.net/manual/en/language.oop5.static.php
The member variable has to be declared static too.
149
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