Free Zend Certified Engineer Exam 200-710 Exam Practice Test

What is the output of the following code? var_dump(boolval([]));

• bool(true)
• bool(false)

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"):idnameemail1annaalpha@example.com2bettybeta@example.org3claragamma@example.net5suesigma@example.infoPHP 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();}

• The user 'bill' will be inserted, but the user 'john' will not be.
• Both user 'bill' and user 'john' will be inserted.
• Neither user 'bill' nor user 'john' will be inserted.
• The user 'bill' will not be inserted, but the user 'john' will be.

Which technique should be used to speed up joins without changing their results?

• Add indices on joined columns
• Add a WHERE clause
• Add a LIMIT clause
• Use an inner join

What will be the output value of the following code?$array = array(1,2,3);while (list(,$v) = each($array)); var_dump(current($array));

• bool(false)
• int(3)
• int(1)
• NULL
• E: Array

How can you determine whether a PHP script has already sent cookies to the client?

• Use $_COOKIE
• Use the getcookie() function
• Use the headers_sent() function
• Use JavaScript to send a second HTTP request

Please provide the name of the super-global variable where all the information about cookies is available.

Which of the following tasks can be achieved by using magic methods? (Choose 3)

• Initializing or uninitializing object data
• Creating a new stream wrapper
• Creating an iterable object
• Processing access to undefined methods or properties E: Overloading operators like +, *, etc.
• F: Converting objects to string representation

Which of the following parts must a XML document have in order to be well-formed?

• An XML declaration
• A root element
• A specified encoding
• A reference to either a DTD or an XML schema definition

What is the result of the following code? class T{const A = 42 + 1;}echo T::A;

• 42
• 43
• Parse error

What is the output of the following code? function append($str){$str = $str.'append';}function prepend(&$str){$str = 'prepend'.$str;}$string = 'zce'; append(prepend($string)); echo $string;

• zceappend
• prependzceappend
• prependzce
• zce