Checking with is_array for Arrays and ArrayObjects

Question

I have some legacy code and refactored an array to an ArrayObject. Now I have problems checking, if a variable is an array:

 if (is_array($entity) && $otherCondition) {
      // do something
 }

The function is_array() returns false on an ArrayObject. See this report.

Simplest solution would be to use something like this:

 function is_traversable($var) {
     return is_array($var) || $var instanceof Traversable;
 }

Is there some native way for PHP to do a check like this?

Answer 1

according to http://blog.stuartherbert.com/php/2010/07/19/should-is_array-accept-arrayobject/, you have to make the custom method you wrote in order to do what you wish...