Static and dynamic methods within the same php class

Question

assume i have a class like so:

class ClassA{

    var $var = 'a1';
    static $static_var = 'a2';

    function get(){
        return $this->var;
    }

    static function get_static(){
        return self::$static_var;
    }

}

What happens in memory when I call this:

$class = new ClassA();
echo $class->get();

And also what happens when I call this:

echo ClassA::get_static();

When I create an instance of ClassA, what happens to the static members of the class? Does it take up more memory? Does it ignore the static members?

I want to keep a bunch of static functions within ClassA but I also want to create instances of ClassA. Should I separate static members from dynamic members?

hek2mgl · Accepted Answer · 2013-04-11 02:03:18Z

1

I want to keep a bunch of static functions within ClassA but I also want to create instances of ClassA. Should I separate static members from dynamic members?

Answer: Static class members consuming memory once per per class. Regular class members consuming memory once per instance

edited Apr 11, 2013 at 2:03

answered Apr 11, 2013 at 1:56

hek2mgl

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2 Comments

user2103849 Over a year ago

so when i create 1000 instances of ClassA i have 1000 copies of variable $var and just 1 copy of $static_var?

user2103849 Over a year ago

i just wanted to know if the static members influenced how much memory an instance of a class takes up. i guess this answers my question

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