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

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 output of the following PHP code? <?php $x = 5; $y = 10; echo $x + $y; ?>

A). 15

B). 5 + 10

C). $x + $y

D). 510

What is the purpose of the PHP include statement?

A). To include and evaluate an external PHP file

B). To create a loop in PHP

C). To define a function in PHP

D). To execute a SQL query

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 NOT a valid PHP variable name?

A). $my_var

B). $myVar

C). $my-var

D). $myVar123

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 NOT a feature of PHP?

A). Strongly typed

B). Open source

C). Extensive database support

D). Platform-independent

What file extension is commonly used for PHP scripts?

A). .php

B). .html

C). .js

D). .css

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 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