PHP Practice Test

Question 1

What is the meaning of PHP?

Accepted Answer

PHP: Hypertext Preprocessor

Answer

PHP originally stood for 'Personal Home Page.' However, it was later officially redefined as a recursive acronym, 'PHP: Hypertext Preprocessor.' This new definition better reflects its primary role as a server-side scripting language for web development.

Question 2

Which of the following methods for declaring a PHP variable is incorrect?

Accepted Answer

$a Variable;

Answer

In PHP, variable names must begin with a dollar sign ($) followed by a letter or an underscore, and can only contain alphanumeric characters and underscores. Spaces are not permitted within a variable name, making '$a Variable;' an incorrect and invalid method for declaring a PHP variable.

Question 3

What is the proper method for defining constants in PHP?

Accepted Answer

Define("Constant");

Answer

In PHP, constants are defined using the `define()` function. This function takes two main arguments: the name of the constant as a string, and its value. Unlike variables, constants do not start with a dollar sign and cannot be changed once declared, making them useful for fixed values like database credentials or application settings.

Question 4

What are the delimiters that surround PHP server scripts?

Accepted Answer

<?php...?>

Answer

PHP code blocks are typically enclosed within the `` delimiters. These tags tell the web server to interpret the enclosed code as PHP, rather than plain HTML. While shorter tags like `` exist, `

Question 5

Which of the following methods for declaring a PHP variable is incorrect?

Accepted Answer

$a_Number = 9

Answer

PHP statements, including variable declarations, must end with a semicolon (`;`). Option B `$a_Number = 9` is missing this crucial terminator, which would result in a parse error. The other options correctly declare a variable and assign a value, terminating the statement with a semicolon.

PHP - PHP Programming Language Practice Test

PHP - PHP Programming Language Practice Test

PHP Practice Test