EXAM CODE : 200-710 UPDATION DATE : 2023-03-30 TOTAL QUESTIONS : 75 UPDATES : UPTO 3 MONTHS GUARANTEE : 100% PASSING GUARANTEE
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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();
A. 0
B. 1
C. 2
D. 3
ANSWER : D
In the following code, which line should be changed so it outputs the number 2: class A { protected $x = array(); /* A */ public function getX() { /* B */ return $this->x; /* C */ } } $a = new A(); /* D */ array_push($a->getX(), "one"); array_push($a->getX(), "two"); echo count($a->getX());
A. No changes needed, the code would output 2 as is
B. Line A, to: protected &$x = array();
C. Line B, to: public function &getX() {
D. Line C, to: return &$this->x;
E. Line D, to: $a =& new A();
ANSWER : C
What is the difference between the spaceship operator (<=>) and the strcmp() function?
A. There is no difference in functionality
B. strcmp() returns a Boolean value, the spaceship operator a number
C. strcmp() does a case-intensive comparison, the spaceship operator does not
D. The spaceship operator returns -1, 0 or 1; strcmp() may return any integer
ANSWER : D
What is the output of the following code? var_dump(boolval(new StdClass()));
A. bool(true)
B. bool(false)
ANSWER : A
Which of the following superglobals does not necessarily contain data from the client?
A. $_POST
B. $_SESSION
C. $_GET
D. $_SERVER
ANSWER : B
