#41137 [NEW]: is_a() for interfaces

From: amadeusz dot jasak at gmail dot com Operating system: - PHP version: 5.2.1 PHP Bug Type: Feature/Change Request Bug description: is_a() for interfaces Description: ------------ is_a function will be works if first argument is class name and next argument is interface name. Currently it isn't working... I can't check for class (not object) is implementing some interface Reproduce code: --------------- <?php inteface factory { public static function _factory($params); } class foo implements factory { public static function _factory($params) { $t = new foo(); return $t; // Sweet use of factory ;) } } var_dump ( is_a('foo', 'factory'), // Currently return false, but true is expected is_a($foo = new foo(), 'factory') // It is working but it isn't practicly ); ?> Expected result: ---------------- bool(true) bool(true) Actual result: -------------- bool(false) bool(true) -- Edit bug report at http://bugs.php.net/?id=41137&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=41137&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=41137&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=41137&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=41137&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=41137&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=41137&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=41137&r=needscript Try newer version: http://bugs.php.net/fix.php?id=41137&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=41137&r=support Expected behavior: http://bugs.php.net/fix.php?id=41137&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=41137&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=41137&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=41137&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=41137&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=41137&r=dst IIS Stability: http://bugs.php.net/fix.php?id=41137&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=41137&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=41137&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=41137&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=41137&r=mysqlcfg