200-500 Exam Questions

What is the output of the following script? 1 <?php 2 function fibonacci ($x1, $x2) 3 { 4 return $x1 + $x2; 5 } 7 $x1 = 0; 8 $x2 = 1; 10 for ($i = 0; $i < 10; $i++) { 11 echo fibon...

What will be the value of $b after running the following code? $a = array('c', 'b', 'a'); $b = (array)$a;

How can you redirect a client to another page using PHP?

What is the output of the following code? 1 <?php 2 $a = 'a'; $b = 'b'; 3 echo isset($c) ? $a.$b.$c : ($c = 'c').'d'; 4 ?>

Which is the most efficient way to determine if a key is present in an array,assuming the array has no NULL values?

Which 2.17of the following formats is used to describe web services?

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

How can precisely one byte be read from a file, pointed by $fp? (Choose 2)

Which one of the following technologies was not built into PHP before version 5?

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

Assume that you are using PHP s session management without cookies and want to make sure that session information does not get lost when redirecting the client to another URL. Whic...

What method can be used to find a tag with the name "foo" via the DOM extension?

What is the output of the following code? echo "22" + "0.2", 23 . 1;

Can calls to Web Services be queued natively in PHP?

How many array elements will be found in the return value of: split(".", "

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

What is the output of the following code? 1 <?php 2 function append($str) 3 { 4 $str = $str.'append'; 5 } 7 function prepend(&$str) 8 { 9 $str = 'prepend'.$str; 10 } 12 $string = '...

How can the line on which HTTP headers were sent inside a script be determined?

When you need to process the values of columns in a database, you should:

What visibility denies access to properties and methods outside of the class?

What is the name of the key pointing to the domain name in the array returned by parse_url()?

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

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

You are creating an application that repeatedly connects to a database to retrieve order data for invoices. All data comes from the same database. In order to preserve resources, y...

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; }

Do constants have global scope or local scope?

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

In the function setcookie() what does the 3rd parameter specify?

You want to test if a string matches a relatively complex pattern. Which of the following functions can you use? (Choose 2)

Which of the following techniques ensures that a value submitted in a form can only be yes or no?

What is "instanceof" an example of:

An HTML form contains this form element: <input type="file" name="myFile" /> When this form is submitted, the following PHP code gets executed: 1 <?php 2 move_uploaded_file( 3 $_FI...

What will the following code print? echo addslashes('I am a <b>small</b> "HTML" string, which is \'invalid\'</u>.');

Which session function can help to avoid session fixation?

Consider the following XML code: <?xml version="1.0" encoding="utf-8"?> <books> <book id="1">PHP 5 Power Programming</book> <book id="2">Learning PHP 5</book> </books> Which of the...

When a transaction reports no affected rows, it means that: (Choose 2)

What does the chown() function do?

The function mysqli_affected_rows() can be used to perform which of the following actions? (Choose 2)

In a typical web application the most used database action is...

PHP's array functions such as array_values() and array_key_exists() can be used on an object if the object...

Is the following code piece E_STRICT compliant? final class Testing { var $test = 0; public function tester() { return "Tested!"; }}

Which function can help prevent cross-site scripting? (Choose 2)

What is the output of the following script? 1 <?php 2 function ratio ($x1 = 10, $x2) 3 { 4 if (isset ($x2)) { 5 return $x2 / $x1; 6 } 7 } 9 echo ratio (0); 10 ?>

What is the file locking mode that should be used when writing to a file?

You want to extract the pieces of a date string, which looks like this: "2005-11-02". Which of the following pieces of code will properly assign $year, $month and $day with their r...

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

What is the best way to run PHP 4 and PHP 5 side-by-side on the same Apache server?

What is the output of the following code? str_pad('PHP', 10, 'P', STR_PAD_BOTH);

What is the output of the following script? 1 <?php 2 class a 3 { 4 public $val = 10; 5 } 7 function renderVal (a $a) 8 { 9 return $a->$val; 10 } 12 renderVal (new a); 13 ?>

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