What does the following code output?

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

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';

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 output of the following code? <?php for ($i = 0; $i < 3; $i++) { echo $i . ', '; } ?>

A). 0, 1, 2,

B). 1, 2, 3,

C). 0, 1, 2

D). 1, 1, 1,

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

How do you output text in PHP?

A). echo 'Hello, World!';

B). console.log('Hello, World!');

C). print('Hello, World!');

D). write('Hello, World!');

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

A). file_exists()

B). is_file()

C). exists()

D). check_file()