#50037 [NEW]: No is_function() to check whether variable is an anonymous function

From: mjs at beebo dot org Operating system: OS X PHP version: 5.3.0 PHP Bug Type: Feature/Change Request Bug description: No is_function() to check whether variable is an anonymous function Description: ------------ There doesn't seem to be any good way to check whether a variable is a closure/anonymous function. If $fn = function() { }; gettype($fn) is "object", and there is no is_function() or equivalent. The only way seems to be gettype($fn) == "object" && get_class($fn) == "Closure" but the anonymous function documentation says that the fact that anonymous functions have class Closure "is an implementation detail and should not be relied upon." I suggest: 1. gettype() returns "function" or "closure" when passed a closure. 2. is_function() is created that returns true when passed a closure, otherwise false. -- Edit bug report at http://bugs.php.net/?id=50037&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=50037&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=50037&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=50037&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=50037&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=50037&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=50037&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=50037&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=50037&r=needscript Try newer version: http://bugs.php.net/fix.php?id=50037&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=50037&r=support Expected behavior: http://bugs.php.net/fix.php?id=50037&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=50037&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=50037&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=50037&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=50037&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=50037&r=dst IIS Stability: http://bugs.php.net/fix.php?id=50037&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=50037&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=50037&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=50037&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=50037&r=mysqlcfg