Which function is used to retrieve the value of a query string parameter in PHP?

What is the output of the following code? <?php $a = 10; $b = 5; echo ($a > $b) ? 'Yes' : 'No'; ?>

A). Yes

B). No

C). 1

D). 0

What does the following code output? <?php echo 5 + 3 * 2; ?>

A). 16

B). 11

C). 10

D). 6

Which of the following statements is true about PHP's include and require functions?

A). include will only produce a warning if the file cannot be found, while require will produce an error

B). include will produce an error if the file cannot be found, while require will only produce a warning

C). Both include and require will produce an error if the file cannot be found

D). Both include and require will only produce a warning if the file cannot be found

What does the $_POST superglobal array contain in PHP?

A). Data submitted via an HTML form using the POST method

B). Data submitted via an HTML form using the GET method

C). Data stored in cookies

D). Data stored in session variables

What is the purpose of the semicolon (;) in PHP?

A). To indicate the end of a statement

B). To concatenate strings

C). To multiply two numbers

D). To declare a variable

What is the purpose of the PHP phpinfo() function?

A). To display information about the PHP environment

B). To execute PHP code

C). To retrieve data from a database

D). To create a new PHP file

Which of the following PHP directives is used to set the maximum execution time of a script?

A). max_execution_time

B). memory_limit

C). error_reporting

D). display_errors

Which PHP function is used to output content as HTML entities, preventing cross-site scripting (XSS) attacks?

A). htmlspecialchars()

B). htmlentities()

C). escape()

D). sanitize()

Which of the following statements is true about PHP variables?

A). Variable names are case-sensitive in PHP

B). PHP variables must start with a dollar sign ($)

C). Variable names cannot contain numbers

D). Variables in PHP cannot be reassigned

What is the file extension for PHP scripts?

A). .html

B). .php

C). .js

D). .css