<?php
class OYA {
const TEST = '親';
public function getSelfOverride() {
return self::TEST;
}
public function getSelfOya() {
return self::TEST;
}
public function getStaticOverride() {
return static::TEST;
}
public function getStaticOya() {
return static::TEST;
}
}
class KO extends OYA {
const TEST = '子';
public function getSelfOverride() {
return self::TEST;
}
public function getSelfKo() {
return self::TEST;
}
public function getStaticOverride() {
return static::TEST;
}
public function getStaticKo() {
return static::TEST;
}
}
var_dump(phpversion() === "7.0.15-0ubuntu0.16.04.4");
var_dump(OYA::TEST === '親');
var_dump(KO::TEST === '子');
$ko = new KO;
var_dump($ko::TEST === '子');
var_dump($ko->getSelfOverride() === '子');
var_dump($ko->getSelfKo() === '子');
var_dump($ko->getSelfOya() === '親');
var_dump($ko->getStaticOverride() === '子');
var_dump($ko->getStaticKo() === '子');
var_dump($ko->getStaticOya() === '子');