Pass the Zend PHP and Zend Framework Certifications 200-550 Questions and answers with ExamsMirror

Which of the following statements is true?

Which of the following functions will allow identifying unique values inside an array?

What is the output of the following code?

function increment ($val)

{

$val = $val + 1;

}

$val = 1;

increment ($val);

echo $val;

In order to create an object storage where each object would be stored only once, you may use which of the following? (Choose 2)

Consider the following table data and PHP code, and assume that the database supports transactions. What is the outcome?

Table data (table name "users" with primary key "id"):

id name email

------- ----------- -------------------

1 anna alpha@example.com

2 betty beta@example.org

3 clara gamma@example.net

5 sue sigma@example.info

PHP code (assume the PDO connection is correctly established):

$dsn = 'mysql:host=localhost;dbname=exam';

$user = 'username';

$pass = '********';

$pdo = new PDO($dsn, $user, $pass);

try {

$pdo->exec("INSERT INTO users (id, name, email) VALUES (6, 'bill', 'delta@example.com')");

$pdo->begin();

$pdo->exec("INSERT INTO users (id, name, email) VALUES (7, 'john', 'epsilon@example.com')");

throw new Exception();

} catch (Exception $e) {

$pdo->rollBack();

}

What is the result of the following code?

define('PI', 3.14);

class T

{

const PI = PI;

}

class Math

{

const PI = T::PI;

}

echo Math::PI;

Which of the following superglobals does not necessarily contain data from the client?

What super-global should be used to access information about uploaded files via a POST request?

Consider the following table data and PHP code. What is the outcome?

Table data (table name "users" with primary key "id"):

id name email

------- ----------- -------------------

1 anna alpha@example.com

2 betty beta@example.org

3 clara gamma@example.net

5 sue sigma@example.info

PHP code (assume the PDO connection is correctly established):

$dsn = 'mysql:host=localhost;dbname=exam';

$user = 'username';

$pass = '********';

$pdo = new PDO($dsn, $user, $pass);

try {

$cmd = "INSERT INTO users (id, name, email) VALUES (:id, :name, :email)";

$stmt = $pdo->prepare($cmd);

$stmt->bindValue('id', 1);

$stmt->bindValue('name', 'anna');

$stmt->bindValue('email', 'alpha@example.com');

$stmt->execute();

echo "Success!";

} catch (PDOException $e) {

echo "Failure!";

throw $e;

}

How do you allow the caller to submit a variable number of arguments to a function?