PHP · Medium

Lesson 1 · On the house

Namespaces and use

namespace, use, FQCN, \ root.

Lesson 2

Autoload sketch

spl_autoload_register, Composer PSR-4 idea.

Lesson 3

Abstract classes and final

abstract class, abstract function, final class / final function.

Lesson 4

Magic methods

__toString, __invoke, __get — when they fire.

Lesson 5

Generators and yield

yield, foreach over generator, lazy sequences.

Lesson 6

Closures and callable

function () use ($x), callable type, bind.

Lesson 7

PDO prepared statements

new PDO, prepare, execute, fetch — never concatenate SQL.

Lesson 8

Sessions

session_start, $_SESSION, set/read/unset.

Lesson 9

DateTimeImmutable

create, modify/format, immutability vs DateTime.

Lesson 10

Medium capstone

Namespaced class + PDO prepare + DateTimeImmutable stamp.