PHP delayed static binding example sharing_PHP tutorial

I haven’t used this new feature much, and it’s not really new at all. Give it a try. Inheriting static classes is very convenient now

<&#63;php
class A {
 protected static $def = '123456';

 public static function test() {
  echo get_class(new static);
 }

 public static function test2() {
  echo static::$def;
 }
}

class B extends A {
 protected static $def = '456789';
}

class C extends A {
 protected static $def = 'abcdef';
}

echo B::test();
echo '<br>';
echo C::test();
echo '<br>';
echo B::test2();
echo '<br>';
echo C::test2();
echo '<br>';
echo A::test();
echo '<br>';
echo A::test2();
echo '<br>';

// 输出结果
B
C
456789
abcdef
A
123456

http://www.bkjia.com/PHPjc/825540.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/825540.htmlTechArticleI haven’t used this new feature much, but it’s not actually new. Give it a try, now the inheritance of static classes Very convenient phpclass A { protected static $def = '123456'; public static function test...