Question

I’m calling a function with call_user_func_array :

call_user_func_array(array($this, 'myFunction'), array('param1', 'param2', 'param3')); 

Everything is ok unless I don’t know how many parameters the function needs. If the function needs 4 parameters it sends me an error, I’d like to test if I can call the function (with an array of parameters). is_callable() doesn’t allow parameters check. Edit : If the call fails I need to call another function, that’s why I need a check.

Thanks!

Answer 1

You could use reflection to get the number of parameters:

$refl = new ReflectionMethod(get_class($this), 'myFunction'); $numParams = $refl->getNumberOfParameters(); 

or

$numParams = $refl->getNumberOfRequiredParameters(); 

See here for some more information