What is the output of the following PHP code?

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

A). To terminate script execution

B). To display a message and exit

C). To redirect to another URL

D). To close a database connection

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

A). $my_var

B). $myVar

C). $my-var

D). $myVar123

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 file extension is commonly used for PHP scripts?

A). .php

B). .html

C). .js

D). .css

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 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 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). <?>

What is the purpose of the PHP interpreter?

A). To parse and execute PHP code

B). To generate HTML markup

C). To validate user input

D). To store data in databases

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

A). max_execution_time

B). memory_limit

C). error_reporting

D). display_errors