Which of the following is NOT a valid PHP variable name?
A). $my_var
B). $myVar
C). $my-var
D). $myVar123
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
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
Which of the following is a correct way to start a PHP script?
A). <?php
B). <script>
C). <?php?>
D). <?>
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 best describes PHP?
A). Server-side scripting language
B). Client-side programming language
C). Markup language
D). Database management system
Which of the following is used to comment out a single line of PHP code?
A). //
B). /* */
C). <!-- -->
D). <?php ?>
What does PHP stand for?
A). Personal Home Page
B). Preprocessed Hypertext Processor
C). Public Hyperlink Protocol
D). Programming Hypertext Processor
What file extension is commonly used for PHP scripts?
A). .php
B). .html
C). .js
D). .css
Which of the following is true about PHP sessions?
A). Sessions allow data to be persistently stored across multiple page requests
B). Sessions are stored on the client side
C). Sessions are limited to storing only strings
D). Sessions are enabled by default in PHP