Chapter 4 Introduction to Hypertext Pre - Processor

1. PHP is a Client Side Scripting Language

True

False

PHP is actually a server-side scripting language, not a client-side scripting language. Client-side scripting languages, such as JavaScript, are executed on the user's web browser, while server-side scripting languages, such as PHP, are executed on the web server before the web page is sent to the user's browser. PHP is used to generate dynamic web pages and interact with databases, making it a server-side language.

Explanation

PHP is actually a server-side scripting language, not a client-side scripting language. Client-side scripting languages, such as JavaScript, are executed on the user's web browser, while server-side scripting languages, such as PHP, are executed on the web server before the web page is sent to the user's browser. PHP is used to generate dynamic web pages and interact with databases, making it a server-side language.

2. What does PHP stands for ?

Hypertext Pre- Processor

Pretext Hypertext Processor

Personal Home Page

Preprocessor Home Page

PHP stands for Hypertext Pre-Processor. It is a widely-used open-source scripting language that is specifically designed for web development. The name "Hypertext Pre-Processor" reflects its purpose of processing hypertext or web pages before they are displayed to users. PHP is used to create dynamic web pages, handle form data, interact with databases, and perform various server-side tasks.

Explanation

PHP stands for Hypertext Pre-Processor. It is a widely-used open-source scripting language that is specifically designed for web development. The name "Hypertext Pre-Processor" reflects its purpose of processing hypertext or web pages before they are displayed to users. PHP is used to create dynamic web pages, handle form data, interact with databases, and perform various server-side tasks.

3. Match the following operators

**

&&

===

.

Submit

4. The variable name can never start with __________________

Number

Symbol

Comma

@

In programming, variables are used to store data. The name of a variable is important as it helps in identifying and accessing the stored data. According to the given answer, a variable name cannot start with "number". This is because starting a variable name with a number is not allowed in most programming languages. Variable names are typically required to start with a letter or an underscore character. Starting a variable name with a number could lead to syntax errors or confusion in the code.

Explanation

In programming, variables are used to store data. The name of a variable is important as it helps in identifying and accessing the stored data. According to the given answer, a variable name cannot start with "number". This is because starting a variable name with a number is not allowed in most programming languages. Variable names are typically required to start with a letter or an underscore character. Starting a variable name with a number could lead to syntax errors or confusion in the code.

5. Which statement will output $x on the screen ?

Echo "\$x"

Echo "\$$x"

Echo "/$x"

Echo "$x"

The correct answer is echo "\$x" because the backslash (\) before the dollar sign ($) is used to escape the special meaning of the dollar sign and treat it as a regular character. Therefore, when the echo command is executed, it will print the literal string "$x" on the screen.

Explanation

The correct answer is echo "\$x" because the backslash (\) before the dollar sign ($) is used to escape the special meaning of the dollar sign and treat it as a regular character. Therefore, when the echo command is executed, it will print the literal string "$x" on the screen.

6. The ___________ system define function, returns structured information (Types and values) about variables in PHP

The var_dump() function in PHP is used to display structured information about variables. It returns the types and values of the variables, providing a detailed insight into their contents. This is useful for debugging and understanding the data stored in variables during the development process.

Explanation

The var_dump() function in PHP is used to display structured information about variables. It returns the types and values of the variables, providing a detailed insight into their contents. This is useful for debugging and understanding the data stored in variables during the development process.

Submit

7. For PHP programming what are editors used ?

Notepad++

Sublime

Eclipse

Notepad

The editors commonly used for PHP programming are Notepad++, Sublime, and Eclipse. These editors provide features and functionalities that are specifically designed for PHP development, such as syntax highlighting, code completion, and debugging tools. They offer a more efficient and organized coding experience for PHP developers, allowing them to write, edit, and manage their PHP code effectively.

Explanation

The editors commonly used for PHP programming are Notepad++, Sublime, and Eclipse. These editors provide features and functionalities that are specifically designed for PHP development, such as syntax highlighting, code completion, and debugging tools. They offer a more efficient and organized coding experience for PHP developers, allowing them to write, edit, and manage their PHP code effectively.

Submit

8. A PHP Script should start with _________ and end with _________

A PHP script should start with the opening tag "" to indicate the beginning and end of the PHP code. This is necessary for the PHP interpreter to recognize and execute the code enclosed within these tags.

Explanation

A PHP script should start with the opening tag "" to indicate the beginning and end of the PHP code. This is necessary for the PHP interpreter to recognize and execute the code enclosed within these tags.

Submit

9. What is the symbol used for newline ?

\m

\n

\r

\v

The symbol used for a newline is \n.

Explanation

The symbol used for a newline is \n.

Submit

Chapter 4 Introduction To Hypertext Pre - Processor