<?php
class User {
    private $name; // Class Member Property

    private static $users = array( // Class Property
        1=>array(
            "fname" => "Ted",
            "lname"->"Mosby"),
        2=>array(
            "fname" => "Robin",
            "lname"->"Scherbatsky")
        );

    public function GetName() { // Class Member Method
        return $this->name;
    }

    public static function GetFirstName($id) { // Class Method
        return self::$users[$id]["fname"];
    }

    public function __construct($name) { // Constructor
        $this->name = $name;
    }
}

To access a class member method, a new instance of the class has to be created:

$user = new User("Robin"); // <- Class member - Is an instance of the class User

echo $user->GetName(); // Call of a class member method

/* prints: Robin */

To access a class method, a reference to the class has to be used:

var_dump(User::GetFirstName(1));

/* prints: Ted */

?>