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php Programming Glossary: is_callableImplementing goMongoDB-like Query expression object evaluation http://stackoverflow.com/questions/14972025/implementing-gomongodb-like-query-expression-object-evaluation b r a x 0 break case ' func' case ' fn' case ' f' if is_callable b throw new InvalidArgumentException 'Function should be callable'..
http://stackoverflow.com/questions/1505696/php-call-vs-method-exists of a class and the second is a method name The other is_callable. The function will throw an exception if one of those checks..
What is ?: in PHP 5.3? [duplicate] http://stackoverflow.com/questions/2153180/what-is-in-php-5-3 it do From http twitto.org PHP require __DIR__.' c.php' if is_callable c @ _GET 'c' function echo 'Woah ' throw new Exception 'Error'..
Dynamically Create Instance Method in PHP http://stackoverflow.com/questions/3231365/dynamically-create-instance-method-in-php __call method args if property_exists this method if is_callable this method return call_user_func_array this method args ..
PHP closures and implicit global variable scope http://stackoverflow.com/questions/4054424/php-closures-and-implicit-global-variable-scope function __construct name closure null this _name name is_callable closure closure this null So in summary TL DR is there a way..
Testing for a PHP Closure without referring to the Closure internal class http://stackoverflow.com/questions/4127959/testing-for-a-php-closure-without-referring-to-the-closure-internal-class a Must be Callback Labmda Functor or Closure if is_callable a return false Elminate Callbacks Lambdas if is_object a return.. want to know whether an argument can be used as a callback is_callable will perform better. EDIT If you want to include Functors as.. solution suits your needs function isClosure arg if is_callable arg FALSE name is_callable function TRUE implementation return..
Calling closure assigned to object property directly http://stackoverflow.com/questions/4535330/calling-closure-assigned-to-object-property-directly method class Foo public function __call method args if is_callable array this method return call_user_func_array this method args..
How do I implement a callback in PHP? http://stackoverflow.com/questions/48947/how-do-i-implement-a-callback-in-php how you should use all callable values in general if is_callable cb3 Since cb3 is a static method the class ClassName must be..
http://stackoverflow.com/questions/5451394/call-method-by-string if it is callable first action this data 'action' if is_callable array this action this action else this default or some kind..
Event-driven architecture and hooks in PHP http://stackoverflow.com/questions/6846118/event-driven-architecture-and-hooks-in-php must be at least syntactically correct when added. if is_callable callback true throw new InvalidArgumentException sprintf 'Invalid.. do your own warning or exception here as you need it. if is_callable callback continue call_user_func callback hooks new Hooks..
Determining, if a variable is a valid closure in PHP http://stackoverflow.com/questions/7101469/determining-if-a-variable-is-a-valid-closure-in-php function function is_closure t return is_string t is_callable t Can this return true for anything else than an anonymous closure..
Is it possible in PHP to prevent “Fatal error: Call to undefined function”? http://stackoverflow.com/questions/7116995/is-it-possible-in-php-to-prevent-fatal-error-call-to-undefined-function way to handle this is to use function_exists and possibly is_callable for good measure as in your example above. It's always a better..
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