Zend Certified PHP Engineer

Which interfaces could class C implement in order to allow each statement in the following code to work? (Choose 2) $obj = new C(); foreach ($obj as $x => $y...

What is the output of the following code? class Foo Implements ArrayAccess { function offsetExists($k) { return true;} function offsetGet($k) {return 'a';} func...

What is the output of the following code? class Bar { private $a = 'b'; public $c = 'd'; } $x = (array) new Bar(); echo array_key_exists('a', $x) ? 'true' : 'fa...

What is the output of the following code? $a = array('a', 'b'=>'c'); echo property_exists((object) $a, 'a')?'true':'false'; echo '-'; echo property_exists((o...

Assuming UTF-8 encoding, what is the value of $count? $data = '$12'; $count = strlen($data);