PHP オブジェクト定数

<?php

class Post
{
private $text;
private static $count = 0;
//private const VERSION = 0.1;
public const VERSION = 0.1;

public function __construct($text)
{
$this->text = $text;
self::$count++;
}

public function show()
{
printf(‘%s’ . PHP_EOL, $this->text);
}

public static function showInfo()
{
printf(‘Count: %d’ . PHP_EOL, self::$count);
printf(‘Version: %.1f’ . PHP_EOL, self::VERSION);
}
}

$posts = [];
$posts[0] = new Post(‘hello’);
$posts[1] = new Post(‘hello again’);

$posts[0]->show();
$posts[1]->show();

Post::showInfo();

echo Post::VERSION . PHP_EOL;