What is the output of the following PHP code?

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

A). To execute a SQL query on a MySQL database

B). To validate user input

C). To include an external file

D). To declare a variable

Which of the following is a correct way to define a constant in PHP?

A). define('MY_CONST', 'value');

B). $MY_CONST = 'value';

C). const MY_CONST = 'value';

D). MY_CONST = 'value';

Which of the following is NOT a feature of PHP?

A). Strongly typed

B). Open source

C). Extensive database support

D). Platform-independent

Which of the following is a correct way to start a PHP script?

A). <?php

B). <script>

C). <?php?>

D). <?>

Which of the following best describes PHP?

A). Server-side scripting language

B). Client-side programming language

C). Markup language

D). Database management system

What is the purpose of the PHP echo statement?

A). To output data to the browser

B). To define a function

C). To include an external file

D). To declare a variable

What does PHP stand for?

A). Personal Home Page

B). Preprocessed Hypertext Processor

C). Public Hyperlink Protocol

D). Programming Hypertext Processor

Which of the following is NOT a valid PHP variable name?

A). $my_var

B). $myVar

C). $my-var

D). $myVar123

What is the output of the following PHP code? <?php echo 'Hello, World!'; ?>

A). Hello, World!

B). <?php echo 'Hello, World!'; ?>

C). <?php echo 'Hello, World!'; ?>;

D). <?php echo 'Hello, World!'; ?>;

Which of the following is used to concatenate strings in PHP?

A). .

B). +

C). ,

D). -