Which of the following will NOT instantiate a DateTime object with the current timestamp? A. $date = new DateTime(); B. $date = new DateTime(‘@’ . time()); C. $date = new DateTime(‘now’); D. $date = new DateTime(time());

Given a DateTime object that is set to the first second of the year 2014, which of the following samples will correctly return a date in the format ‘2014-01-01 00:00:01’? A. $datetime->format(‘%Y-%m-%d %h:%i:%s’) B. $datetime->format(‘%Y-%m-%d %h:%i:%s’, array(‘year’, ‘month’, ‘day’, ‘hour’,…

Given the following DateTime objects, what can you use to compare the two dates and indicate that $date2 is the later of the two dates? $date1 = new DateTime(‘2014-02-03’); $date2 = new DateTime(‘2014-03-02’); A. $date2 > $date1 B. $date2 <…

Given the following DateTime object, which sample will NOT alter the date to the value ‘2014- 02-15’? $date = new DateTime(‘2014-03-15’); A. $date->sub(new DateInterval(‘P1M’)); B. $date->setDate(2014, 2, 15); C. $date->modify(‘-1 month’); D. $date->diff(new DateInterval(‘-P1M’));

Consider the following two files. When you run test.php, what would the output look like? test.php: include “MyString.php”; print “,”; print strlen(“Hello world!”); MyString.php: namespace MyFrameworkString; function strlen($str) { return strlen($str)*2; // return double the string length } print strlen(“Hello…

Which line of code can be used to replace the INSERT comment in order to output "hello"? class C { public $ello = ‘ello’; public $c; public $m; function __construct($y) { $this->c = static function($f) { // INSERT LINE OF…

What is the output of the following code? function z($x) { return function ($y) use ($x) { return str_repeat($y, $x); }; } $a = z(2); $b = z(3); echo $a(3) . $b(2); A. 22333 B. 33222 C. 33322 D. 222333

What is the output of the following code? $f = function () { return "hello"; }; echo gettype($f); A. hello B. string C. object D. function

What is the output of the following code? class C { public $x = 1; function __construct() { ++$this->x; } function __invoke() { return ++$this->x; } function __toString() { return (string) –$this->x; } } $obj = new C(); echo $obj();…

Given a JSON-encoded string, which code sample correctly indicates how to decode the string to native PHP values? A. $json = new Json($jsonValue); $value = $json->decode(); B. $value = Json::decode($jsonValue); C. $value = json_decode($jsonValue); D. $value = Json::fromJson($jsonValue);