From: indeyets at gmail dot com
Operating system:
PHP version: 5.0.4
PHP Bug Type: Feature/Change Request
Bug description: there is no easy way to check if class implements some
interface
Description:
------------
there is no easy way to check if class implements some interface. This
is needed, when, for example, php-application has support for loading
external classes.
external classes have to implement some interface. And check for this
should happen BEFORE object creation. (for example, there might be a
need for some specific constructor syntax).
PHP 5.0 allows to do the following things:
1). $parent = get_parent_class("SomeClassName"). This would be
sufficient, if plugins _extend_ some base class. that's not our case -
wouldn't work for interfaces
2). if ($obj instanceof "SomeInterfaceName") {}. This would work, if we
could create object before the interface check. Wouldn't work for
non-existen objects
3). reflection API. it can do the thing, but overhead (both in code and
in resources) is too big
--
Edit bug report at http://bugs.php.net/?id=32603&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=32603&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=32603&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=32603&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=32603&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=32603&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=32603&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=32603&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=32603&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=32603&r=support
Expected behavior: http://bugs.php.net/fix.php?id=32603&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=32603&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=32603&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=32603&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=32603&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=32603&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=32603&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=32603&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=32603&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=32603&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=32603&r=mysqlcfg
