<?php
class Army
{
public static $strength = 20;
public static function getStrength()
{
//late static binding... if the child that called the method has a the property, use that one
//else, go up the class hierarchy and find the static property
return static::$strength;
}
}
echo 'Army strength: ' . Army::getStrength() . '<br/>';
class Batallion extends Army
{
public static $strength = 10;
}
echo 'Batallion strength: ' . Batallion::getStrength() . "<br/>";
class Army
{
public static $strength = 20;
public static function getStrength()
{
return self::$strength;
}
}
class Batallion extends Army
{
public static $strength = 10;
}
echo 'Army strength: ' . Army::getStrength() . '<br />';
// Even though we have redefined the $strength property this will output the original value of 20
echo 'Batallion strength: ' . Batallion::getStrength() . '<br /><br /><br />';
// ###########################################################################################################################
// ############################################# USING LATE STATIC BINDING ###################################################
// ###########################################################################################################################
class ArmyLate
{
public static $strength = 20;
public static function getStrength()
{
// This means that if a child class calling the method has a static $strength property, that will override
return static::$strength;
}
}
class BatallionLate extends ArmyLate
{
public static $strength = 10;