Learning PHP 7 (Video 4)

This video tutorial covers the basic syntax of PHP, including the use of PHP tags, instructions, and comments. It explains how to create a simple 'Hello World' script and discusses best practices for using PHP tags, such as avoiding short open tags and omitting the closing tag to prevent unwanted effects. The tutorial also covers different types of comments in PHP and their importance for documentation. By the end of the video, viewers will have a foundational understanding of PHP syntax and be prepared to learn about variables, constants, and operators in the next video.

What is the main reason for discouraging the use of short open tags in PHP?

• They require a configuration change to be enabled.

• They make the code run slower.

• They are not supported in PHP 7.

• They are not compatible with HTML.

Why is it recommended to omit the PHP closing tag in pure PHP files?

• To prevent accidental white spaces or newlines.

• To make the code more readable.

• To ensure compatibility with older PHP versions.

• To reduce the file size.

What is the purpose of the echo statement in PHP?

• To declare a variable.

• To output one or more strings.

• To include another PHP file.

• To start a PHP session.

Which symbol is used to end a PHP instruction?

• Colon (:)

• Period (.)

• Comma (,)

• Semicolon (;)

Which type of comment is NOT supported by PHP?

• Inline comment

• Multiline comment

• One-line comment

• Shell style one-line comment