dumpspedia logo
Which of the following items in the $_SERVER superglobal are important for authenticating the client when using HTTP Basic authentication? (Choose 2)
The following form is loaded in a browser and submitted, with the checkbox activated:
In the server-side PHP code to deal with the form data, what is the value of $_POST['accept'] ?
Which of the following parts must a XML document have in order to be well-formed?
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');
What will be the result of the following operation?
$a = array_merge([1,2,3] + [4=>1,5,6]);
echo $a[2];
What is the output of the following code?
function increment (&$val)
{
return $val + 1;
}
$a = 1;
echo increment ($a);
echo increment ($a);
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) {
echo $x, $y;
}
Given a JSON-encoded string, which code sample correctly indicates how to decode the string to native PHP values?
Given the following code, what is correct?
function f(stdClass &$x = NULL) { $x = 42; }
$z = new stdClass;
f($z);
var_dump($z);
What will be the output of the following code?
$a = array(0, 1, 2 => array(3, 4));
$a[3] = array(4, 5);
echo count($a, 1);
What is the output of the following code?
echo 0x33, ' monkeys sit on ', 011, ' trees.';
Which PHP function is used to validate whether the contents of $_FILES['name']['tmp_name'] have really been uploaded via HTTP?
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((object) $a, 'b')?'true':'false';
What is the output of the following code?
class Number {
private $v;
private static $sv = 10;
public function __construct($v) { $this->v = $v; }
public function mul() {
return static function ($x) {
return isset($this) ? $this->v*$x : self::$sv*$x;
};
}
}
$one = new Number(1);
$two = new Number(2);
$double = $two->mul();
$x = Closure::bind($double, null, 'Number');
echo $x(5);
What can prevent PHP from being able to open a file on the hard drive (Choose 2)?
In the following code, which classes can be instantiated?
abstract class Graphics {
abstract function draw($im, $col);
}
abstract class Point1 extends Graphics {
public $x, $y;
function __construct($x, $y) {
$this->x = $x;
$this->y = $y;
}
function draw($im, $col) {
ImageSetPixel($im, $this->x, $this->y, $col);
}
}
class Point2 extends Point1 { }
abstract class Point3 extends Point2 { }
Given the default PHP configuration, how can all of the parameters provided via GET be accessed in a form of a string?
What is the output of the following code?
$a = 'a'; $b = 'b';
echo isset($c) ? $a.$b.$c : ($c = 'c').'d';
From your PHP application, how can you send the same header twice, but with different values?
Which of the following does NOT help to protect against session hijacking and fixation attacks?
What is the output of the following code?
$first = "second";
$second = "first";
echo $$$first;
How many elements does the $matches array contain after the following function call is performed?
preg_match('/^(\d{1,2}([a-z]+))(?:\s*)\S+ (?=201[0-9])/', '21st March 2014', $matches);
What is the return value of the following code: substr_compare("foobar", "bar", 3);
When a query that is supposed to affect rows is executed as part of a transaction, and reports no affected rows, it could mean that: (Choose 2)
What is the output of the following code?
class a
{
public $val;
}
function renderVal (a $a)
{
if ($a) {
echo $a->val;
}
}
renderVal (null);
What is the output of the following code?
$a = 3;
switch ($a) {
case 1: echo 'one'; break;
case 2: echo 'two'; break;
default: echo 'four'; break;
case 3: echo 'three'; break;
}
What is the output of the following code?
class Test {
public function __call($name, $args)
{
call_user_func_array(array('static', "test$name"), $args);
}
public function testS($l) {
echo "$l,";
}
}
class Test2 extends Test {
public function testS($l) {
echo "$l,$l,";
}
}
$test = new Test2();
$test->S('A');
Given the following code, what will the output be:
trait MyTrait {
private $abc = 1;
public function increment() {
$this->abc++;
}
public function getValue() {
return $this->abc;
}
}
class MyClass {
use MyTrait;
public function incrementBy2() {
$this->increment();
$this->abc++;
}
}
$c = new MyClass;
$c->incrementBy2();
var_dump($c->getValue());
The constructs for(), foreach(), and each() can all be used to iterate an object if the object...
How many elements does the array $matches from the following code contain?
$str = "The cat sat on the roof of their house.";
$matches = preg_split("/(the)/i", $str, -1, PREG_SPLIT_DELIM_CAPTURE);
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);
What will the following code print out?
$str = '✔ one of the following';
echo str_replace('✔', 'Check', $str);
An HTML form contains this form element:
The user clicks on the image to submit the form. How can you now access the relative coordinates of the mouse click?
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 CODE HERE
};
$this->m = function() {
return "h";
};
}
}
$x = new C("h");
$f = $x->c;
echo $f($x->m);
Which PHP function is used to validate whether the contents of $_FILES['name']['tmp_name'] have really been uploaded via HTTP, and also save the contents into another folder?
Which of the following filtering techniques prevents all cross-site scripting (XSS) vulnerabilities?