<?php
class Army
{
public static $strength = 20;
public static function getStrength()
{
return static::$strength;
// this is late static binding
// this says if child classes have the property, use child, if not, use parent
}
}
class Battalion extends Army
{
public static $strength = 10;
}
class Unit extends Battalion
{
public static $strength = 5;
}
echo 'Army strength: ' . Army::getStrength() . '<br>';
echo 'Battalion strength: ' . Battalion::getStrength() . '<br>';
echo 'Unit strength: ' . Unit::getStrength() . '<br>';
<?php
class Army
{
public static $strength = 20;
public static function getStrength()
{
return static::$strength;
// will check child class first then parent class
//This is called late static binding
//return self::$strength; will renter 20 for battalion
}
}
class Battalion extends Army
{
public static $strength = 10;
}
echo 'Army strength: ' . Army::getStrength() . "<br/>";
echo 'Battalion strength: ' . Battalion::getStrength() . "<br/>";
//Batallion str is 10 but it will render 20 because it will render the parent static as the default
//
class Unit extends Battalion
{
public static $strength = 5;
}
echo 'Unit strength: ' . Unit::getStrength() . "<br/>";
