Question

How to use get_declared_interfaces() function to get an array of all declared interfaces PHP

Answer 1

echo "<pre>";
print_r(get_declared_interfaces());
echo "</pre>";
 
/*
run:
 
Array
(
    [0] => Traversable
    [1] => IteratorAggregate
    [2] => Iterator
    [3] => ArrayAccess
    [4] => Serializable
    [5] => JsonSerializable
    [6] => RecursiveIterator
    [7] => OuterIterator
    [8] => Countable
    [9] => SeekableIterator
    [10] => SplObserver
    [11] => SplSubject
    [12] => Reflector
    [13] => SessionHandlerInterface
)
    
*/

 

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