Zend Zend Certifications 200-710 Questions & Answers

• Question 221:

  CORRECT TEXT What is the name of the key in $_FILES['name'] that contains the number of bytes of the uploaded file?

  Correct Answer: size

• Question 222:

  CORRECT TEXT

  Consider the following code. Which keyword should be used in the line marked with "KEYWORD" instead of "self" to make this code work as intended?

  abstract class Base {

  protected function __construct() {

  }

  public static function create() {

  return new self(); // KEYWORD

  }

  abstract function action();

  }

  class Item extends Base {

  public function action() { echo __CLASS__; }

  }

  $item = Item::create();

  $item->action(); // outputs "Item"

  Correct Answer: static

• Question 223:

  CORRECT TEXT Which DOMElement property provides a reference to the list of the element's children?

  Correct Answer: childNodes

• Question 224:

  CORRECT TEXT What is the name of the key for the element in $_FILES['name'] that contains the provisional name of the uploaded file?

  Correct Answer: tmp_name

• Question 225:

  CORRECT TEXT

  What is the output of the following code?

  class Number {

  private $v = 0;

  public function __construct($v) { $this->v = $v; }

  public function mul() {

  return function ($x) { return $this->v * $x; };

  }

  }

  $one = new Number(1);

  $two = new Number(2);

  $double = $two->mul()->bindTo($one);

  echo $double(5);

  Correct Answer: 5

• Question 226:

  CORRECT TEXT

  What is the output of the following code?

  function increment (and$val)

  {

  return $val + 1;

  }

  $a = 1;

  echo increment ($a);

  echo increment ($a);

  Correct Answer: 22

• Question 227:

  CORRECT TEXT

  What is the output of the following code?

  function increment ($val)

  {

  $_GET['m'] = (int) $_GET['m'] + 1;

  }

  $_GET['m'] = 1; echo $_GET['m'];

  Correct Answer: 1

• Question 228:

  CORRECT TEXT

  Which value will be assigned to the key 0 in this example?

  $foo = array(true, '0' => false, false => true);

  Correct Answer: true

• Question 229:

  CORRECT TEXT

  Please provide the value of the $code variable in the following statement to set an HTTP status code that signifies that the requested resource was not found.

  http_response_code($code);

  Correct Answer: 404 -or- 404 Not Found

• Question 230:

  CORRECT TEXT

  Consider the following code:

  $result = $value1 ??? $value2;

  Which operator needs to be used instead of ??? so that $result equals $value1 if $value1 evaluates to true, and equals $value2 otherwise? Just state the operator as it would be required in the code.

  Correct Answer: ?: