200-710 Exam Questions

Which MIME type is always sent by a client if a JPEG file is uploaded via HTTP?

Your application uses PHP to accept and process file uploads. It fails to upload a file that is 5 MB in size, although upload_max_filesize is set to "10M". Which of the following c...

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 [email protected] 2...

Table data (table name "users" with primary key "id"): id name email --- ---- ----- 1 anna [email protected] 2 betty [email protected] 3 clara [email protected] 5 sue sigma@example....

QUESTION 58 Consider the following table data and PHP code. What is a possible outcome? Table data (table name "users" with primary key "id"): id name email --- ---- ----- 1 anna a...

QUESTION 59 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...

QUESTION 60 Given a PHP value, which sample shows how to convert the value to JSON?

QUESTION 61 Given a JSON-encoded string, which code sample correctly indicates how to decode the string to native PHP values?

QUESTION 62 Which of the following PHP values may NOT be encoded to a JavaScript literal using PHP's ext/json capabilities?

QUESTION 63 Which of the following will NOT instantiate a DateTime object with the current timestamp?

QUESTION 64 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...

QUESTION 65 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('2014-02-0...

QUESTION 66 Given the following DateTime object, which sample will NOT alter the date to the value '2014-02-15'? $date = new DateTime('2014-03-15');

QUESTION 67 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...

QUESTION 68 What is the output of the following code? class Foo implements ArrayAccess { function offsetExists($k) { return true; } function offsetGet($k) { return 'a'; } function...

class Bar { private $a = 'b'; public $c = 'd'; } $x = (array) new Bar(); echo array_key_exists('a', $x) ? 'true' : 'false'; echo '-'; echo array_key_exists('c', $x) ? 'true' : 'fal...

QUESTION 70 What is the output of the following code? $a = array('a' => '1', 'c'); echo property_exists((object)$a, 'a') ? 'true' : 'false'; echo '-'; echo property_exists((object)...

QUESTION 71 Assuming UTF-8 encoding, what is the value of $count? $data = '♥1a2'; $count = strlen($data);

QUESTION 72 What is the output of the following code? $world = 'world'; echo <<<TEXT hello $world TEXT;

Given a php ini setting of default_charset = utf-8 what will the following code print in the browser? header('Content-Type: text/html; charset=iso-8859-1'); echo '✂✔✝';

What will the following code print out? $str = '✔ one of the following'; echo str_replace('✔', 'Check', $str);

What is the pattern modifier for handling UTF-8 encoded preg_* functionality?

What is the output of the following code? $text = 'This is text'; $text1 = <<<TEXT TEXT; $text; $text2 = <<<TEXT $text1 TEXT; echo "$text2";

Your public web application needs to provide access to binary files for registered users only. How would you achieve this?

What content-type is required when sending an HTTP POST using JavaScript to ensure that PHP can access the data?

From your PHP application, how can you send the same header twice, but with different values?

Which class of HTTP status codes is used for server error conditions?

Which class of HTTP status codes is used for redirections?

Which of the following can NOT be used to send a cookie from within a PHP application?

Under what condition may HTTP headers be set from PHP if there is content echoed prior to the header function being used?

Before the headers are sent, how can you remove a previously set header?

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

An HTML form has two submit buttons. After submitting the form, how can you determine with PHP which button was clicked?

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

What is the output of the following code? function increment ($val) { $val = $val + 1; } $val = 1; increment ($val); echo $val;

What is the output of the following code? function increment ($val) { $_GET['m'] = (int) $_GET['m'] + 1; } $_GET['m'] = 1; echo $_GET['m'];

How many times will the function counter() be executed in the following code? function counter ($start, &$stop) { if ($stop > $start) { return; } counter ($start--, ++$stop); } $st...

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

Consider the following code snippet: { $value = $value + 1; } $value = $value + 2; { $array = array (1, 2, 3); modifyArray($array);

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? function fibonacci (&$x1 = 0, &$x2 = 1) { $result = $x1 + $x2; $x1 = $x2; $x2 = $result; return $result; } for ($i = 0; $i < 10; $i++) { e...

What is the output of the following code? function ratio ($x1 = 10, $x2) { if (isset ($x2)) { return $x2 / $x1; } } echo ratio (0);

Which of the following is NOT a valid function declaration?

What is the output of the following code? function increment (&$val) { return $val + 1; } $a = 1; echo increment ($a); echo increment ($a);

Which of the following is true about stream contexts? (Choose 2)

Consider the following code. What can be said about the call to file_get_contents? $getdata = 'foo=bar'; $opts = array('http' => array( 'method' => 'POST', 'header' => 'Content-typ...

What function can be used to retrieve an array of current options for a stream context?

When retrieving data from URLs, what are valid ways to make sure all file_get_contents calls send a certain user agent string? (Choose 2)

What will an opcode cache ALWAYS automatically improve?

What is cached by an opcode cache?