Which PHP function is used to check if a file exists in PHP?

Which of the following statements correctly assigns the value 'John' to the variable $name in PHP?

A). $name = 'John';

B). 'John' = $name;

C). $name -> 'John';

D). $name <- 'John';

Which of the following PHP tags is deprecated and should be avoided?

A). script tag

B). <?php

C). <? ... ?>

D). <?php ... ?>

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

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

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()

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 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

What is the file extension for PHP scripts?

A). .html

B). .php

C). .js

D). .css

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

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