Master Coding Skills &
System Design.

Learn PHP type declarations, strict_types, union types, and nullable types.

Learn Composer — installing packages, composer.json, composer.lock, and essential commands.

An introduction to PHP regex — preg_match, preg_replace, capturing groups, and validation patterns.

Learn json_encode, json_decode, building JSON API responses, and calling APIs with cURL.

Learn PHP date(), strtotime(), and DateTime class for formatting, comparing, and calculating dates.

Learn PHP namespaces, the use keyword, aliasing, and Composer PSR-4 autoloading.

Learn try-catch-finally, multiple exception types, and custom Exception classes.

Learn PHP PDO — connecting to MySQL, fetching rows, and preventing SQL injection with prepared statements.

Learn PHP interfaces and traits — contracts, code reuse, multiple interfaces.