Learning PHP 7 (Video 2)

This video tutorial covers the key differences and improvements in PHP 7 compared to previous versions. It highlights performance enhancements, such as increased request handling and reduced memory usage. The introduction of scalar type hints and return types is discussed, along with new operators like the spaceship and null coalesce operators. Deprecated features and improved exception handling are also covered. The video concludes with a brief overview of the next steps, including setting up a PHP 7 environment.

What is one of the most significant performance improvements in PHP 7 compared to PHP 5.6?

• Higher error rates

• Increased memory consumption

• Handles more requests per second

• Decreased execution speed

What is the purpose of scalar type hints in PHP 7?

• To remove type declarations

• To allow dynamic typing

• To enforce strict type checking

• To use integers, floats, strings, and booleans as type hints

Which operator in PHP 7 is used for concise chained comparisons?

• Spaceship operator

• Null coalesce operator

• Logical AND operator

• Ternary operator

What is a key change in PHP 7 regarding error handling?

• Errors are ignored

• Errors are logged automatically

• Fatal errors are replaced by exceptions

• Errors are displayed in the console

Where can you find more information about migrating to PHP 7?

• MySQL documentation

• Apache server documentation

• Zend.com website

• PHP.net website