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<?php
//  How to check a variable to see if it can be called
//  as a function.
//
//  Simple variable containing a function
//
function someFunction() 
{
}
$functionVariable = 'someFunction';
var_dump(is_callable($functionVariable, false, $callable_name));  // bool(true)
echo $callable_name, "\n";  // someFunction
//
//  Array containing a method
//
class someClass {
  function someMethod() 
  {
  }
}
$anObject = new someClass();
$methodVariable = array($anObject, 'someMethod');
 
 
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