ID:               50037
 Updated by:       [email protected]
 Reported By:      mjs at beebo dot org
-Status:           Open
+Status:           Bogus
 Bug Type:         Feature/Change Request
 Operating System: OS X
 PHP Version:      5.3.0
 New Comment:

Sorry, but your problem does not imply a bug in PHP itself.  For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system is not the
appropriate forum for asking support questions.  Due to the volume
of reports we can not explain in detail here why your report is not
a bug.  The support channels will be able to provide an explanation
for you.

Thank you for your interest in PHP.

Use is_callable()


Previous Comments:
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[2009-10-29 21:24:42] mjs at beebo dot org

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.



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