Free Website And Web Server Programming Question and Answers

Question 1

Use the PHP function _______ to establish a connection to a MySQL database server.

Accepted Answer

Mysqli_connect()

Answer

In PHP, the `mysqli_connect()` function is specifically designed and used to establish a connection to a MySQL database server. It takes parameters such as the hostname, username, password, and database name to create a successful connection for subsequent database operations, forming the foundation for interacting with MySQL.

Question 2

What syntax should be used to create a temporary cookie with the value "blue"?

Accepted Answer

Setcookie("color","blue");

Answer

In PHP, the `setcookie()` function is used to send an HTTP cookie to the client's browser. The correct syntax requires at least two arguments: the name of the cookie and its value. Therefore, `setcookie("color", "blue");` correctly creates a cookie named "color" with the value "blue".

Question 3

How would you access a virtual site you created at port 8000 in a browser?

Accepted Answer

Http://localhost:8000

Answer

When accessing a web server or virtual site running on your local machine (localhost) on a specific port, the standard URL format is `http://localhost:port_number`. The colon `:` correctly separates the hostname from the port number, making `http://localhost:8000` the proper way to access a site listening on port 8000.

Question 4

Information about the session status is kept in the $_Session _______

Accepted Answer

Autoglobal

Answer

In PHP, `$_SESSION` is a superglobal (also known as an autoglobal) array used to store session variables. Superglobals are built-in variables that are always available in all scopes throughout a script, making `$_SESSION` the mechanism for managing session-specific data across multiple page requests for a single user.

Question 5

A ______ can be added to the end of a URL as a technique to keep data safe after a visitor has seen the page.

Accepted Answer

Query string

Answer

A query string is a part of a URL that allows data to be passed from one web page to another, typically after a question mark (?). It consists of key-value pairs and is commonly used to maintain state, filter content, or track user information across stateless HTTP requests. While not a security mechanism, it helps persist specific data related to a visitor's interaction with a page.

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Free Website And Web Server Programming Question and Answers