200-710 Exam Questions

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,}(\.[0-z]+))((?:\s+\S)+?)(\s+(?=201[0-9]))/', '21st March 2014...

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 str...

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-sid...

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

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

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>t...

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 r...

Which PHP function sets a cookie whose value does not get URL encoded when sending it to the browser?

Which PHP function sets a cookie and URL encodes its value when sending it to the browser?

What are two reasons to use POST instead of GET when submitting a form? (Choose two.)

What is a difference between the ?? operator and the ?: operator?

Given the following PHP function: ``` function doSomething(?string $s) { // ... } ``` Which of the following values for the $s parameter do NOT yield a type error when calling the...

What is the output of the following code? ``` $a=1; $b=2; $c=3; Print (++$a) + (++$b) + (++$c) + ($a++) + (++$b) + ($c++); ```

True or false: you can catch fatal errors (e.g., parse errors, out of memory errors, compilation errors) in PHP 7 using try/catch.

Are PHP constants case-sensitive?

Which PHP extension allows connecting to the server using a variety of protocols, including HTTP, FTP, LDAP, and more?

Which of these approaches is recommended to protect a web site against Cross-Site Request Forgery (CSRF)?

Given the following PHP code: ```php <?php class MyException extends Exception { // } try { throw new MyException('something went wrong'); } *** { echo $e->getMessage(); } ?> ``` W...

Your supervisor wants you to disallow PHP scripts to open remote HTTP and FTP resources using PHP's file functions. Which php.ini setting should you change accordingly?