note 9356 added to Classes and Objects

How about adding variable class extensions. ie: Class MyClass extends $AnotherClass { This would make (for example) changing database interfaces easier at the abstraction level without the need to directly edit the class code. I have a kludge thats works (but is Uggh!) like this: if(!$DB_BASE) DB_BASE = 'db_mysql.class'; /* Sets default if not set higher up class chain */ /* Note: I do not use include_once here because I wish to allow runtime changes to be made. */ /* eg: I am using an oracle interface class with a DBO class object to perform some selects */ /* I then wish to use another DBO object - extending the mysql interface class - to take that */ /* data and perform some insertions. ie: to move data between an oracle and a mysql database. */ /* I can set up two top level classes called 'dbo_oracle' and 'dbo_mysql' each extending upon */ /* the dbo class this way. each of these classes would have an appropriate line such as: */ /* if (!$CLASS_ID('DBO:mysql.class') include the class etc. */ if (!$CLASS_ID['DB_BASE']) { include($CLASS_PATH.$DB_BASE); if (!$CLASS_ID['DB_BASE']) { trigger_error("002::SYSTEM::DBO Class",FATAL); } } $CLASS_ID['DBO:'.$DB_BASE] = true; eval("class DBO_".." extends $DB_BASE {".implode("\n",file($PHP_INCLUDE_PATH.$CLASS_PATH.'dbo.internals'))."}"); http://www.php.net/manual/language.oop.php