PHP静态与对象调用

Question

So I have this problem where I can call an object method statically and vice versa. Is this supposed to happen or what am I doing wrong in case?

PHP Version: 5.6.12 XAMPP Version: 3.2.1

function endl()
{
    echo "<br>";
}

class Base
{
    public function objectFunc($msg)
    {
        echo "You called a non-static function from " . $msg;
        endl();
    }

    public static function staticFunc($msg)
    {
        echo "You called a static function from " . $msg;
        endl();
        }
    }

Base::objectFunc("a static call");
Base::staticFunc("a static call");
$base = new Base;
$base->objectFunc("a non-static call");
$base->staticFunc("a non-static call");


Here are the results from running this:

You called a non-static function from a static call
You called a static function from a static call
You called a non-static function from a non-static call
You called a static function from a non-static call

Answer 1

This could help you:

"Declaring class properties or methods as static makes them accessible without needing an instantiation of the class. A property declared as static cannot be accessed with an instantiated class object (though a static method can)" by php.net

"Because static methods are callable without an instance of the object created, the pseudo-variable $this is not available inside the method declared as static.

Caution: In PHP 5, calling non-static methods statically generates an E_STRICT level warning.

Warning: In PHP 7, calling non-static methods statically is deprecated, and will generate an E_DEPRECATED warning. Support for calling non-static methods statically may be removed in the future. " by php.net

Your code is going to work but with warnings, it depends of php version.

For more see: http://php.net/manual/en/language.oop5.static.php