diff options
-rw-r--r-- | oo/interface.php | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/oo/interface.php b/oo/interface.php new file mode 100644 index 0000000..3f6c3f7 --- /dev/null +++ b/oo/interface.php @@ -0,0 +1,24 @@ +<?php + +/* interface contains only fixed-name declarations/stubs in with no access levels, yet it allows public, + * no ctors, no data members, no method definitions, no restriction on who implements this interface + * + */ +interface iDB { + const MAX_RECORDS = 5000; + public function query(); + public function drop(); +} + +class MyDBDriver implements iDB { + public function query() { + echo "querying" . PHP_EOL; + } + public function drop() { + echo "dropping" . PHP_EOL; + } +} + +$db = new MyDBDriver(); +$db->query() . PHP_EOL; +$db = NULL; |