200-550 Exam Questions

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);

Given the following array: $a = array(28, 15, 77, 43); Which function will remove the value 28 from $a?

The constructs for(), foreach(), and each() can all be used to iterate an object if the object...

Which parts of the text are matched in the following regular expression? $text = <<<EOT The big bang bonged under the bung. EOT; preg_match_all('@b.n?g@', $text, $matches);

What will the following code piece print? echo strtr('Apples and bananas', 'ae', 'ea')

You want to parse a URL into its single parts. Which function do you choose?

Which elements does the array returned by the function pathinfo() contain?

What will the following function call print? printf('%010.6f', 22);

What is the output of the following code? echo 0x33, ' monkeys sit on ', 011, ' trees.';

You want to access the 3rd character of a string, contained in the variable $test. Which of the following possibilites work? (Choose 2)

Which sentence describes the following regular expression match? preg_match('/^\d+(?:\.[0-9]+)?$/', $test);

You need to escape special characters to use user input inside a regular expression. Which functions would you use? (Choose 2)

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', $matc...

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_...

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 length of a string returned by: md5(rand(), TRUE);

What is the return value of the following code? strpos("me myself and I", "m", 2)

What is the return value of the following code: substr_compare("foobar", "bar", 3);

You want to allow your users to submit HTML code in a form, which will then be displayed as real code and not affect your page layout. Which function do you apply to the text, when...

How many elements does the array $pieces contain after the following piece of code has been executed? $pieces = explode("/", "///");

Which string will be returned by the following function call? $test = '/etc/conf.d/wireless'; substr($test, strrpos($test, '/')); // note that strrpos() is being called, and not st...

An HTML form contains this form element: <input type="file" name="myFile" /> When this form is submitted, the following PHP code gets executed: move_uploaded_file( $_FILES['myFile'...

Which PHP function retrieves a list of HTTP headers that have been sent as part of the HTTP response or are ready to be sent?

Which options do you have in PHP to set the expiry date of a session?

The following form is loaded in a browser and submitted, with the checkbox activated: <form method="post"> <input type="checkbox" name="accept" /> </form> In the server-side PHP co...

When uploading a file to a PHP script using the HTTP PUT method, where would the file data be found?

The following form is loaded in a recent browser and submitted, with the second select option selected: <form method="post"> <select name="list"> <option>one</option> <option>two</...

Which of the following is NOT a requirement for file uploads to work?

An HTML form contains this form element: <input type="image" name="myImage" src="image.png" /> The user clicks on the image to submit the form. How can you now access the relative...

What is the output of the following code? echo '1' . (print '2') + 3;

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 "instanceof" an example of?

Which of the following may be used in conjunction with CASE inside a SWITCH statement?

Which of the following are valid identifiers? (Choose 3)

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

What is the difference between "print" and "echo"?

What is the output of the following code? echo "1" + 2 * "0x02";

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...

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...

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 ------- ----------- ---------------...

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 n...

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

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

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

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

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'?

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...

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