PHP lazy static Binding sample sharing _php Tutorial

Not how to use this new feature, in fact, it is not new, try it, now static class inheritance is very convenient

<?phpclass A {protected static $def = ' 123456 '; public static function test () {  echo get_class (new Static);} Publ IC 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 '
'; echo c::test (); Echo '
'; echo b::test2 (); Echo '
'; echo c::test2 (); Echo '
'; echo a::test (); Echo '
'; echo a::test2 (); Echo '
';

Output result bc456789abcdefa123456

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