β How to memorize understand design patterns?
docs: English JsonRpcBundle docs, REST and MCP Bundle sections, package cards
en/articles/from-tg/architecture/design-patterns.md
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# How to memorize understand design patterns?
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Those who took my courses are already familiar with these tips, but I'll repeat them for other readers.
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Once upon a time, like most of you, I crammed patterns before interviews and kept my fingers crossed that they wouldn't ask. And afterwards I'd calmly exhale and forget about them until next time.
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But when I finally decided to figure them out, I realized that I already use some of them almost every day at work β I just didn't know that it was a pattern and what it was called.
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So I worked out a scheme for myself on how to understand them.
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## 1. Don't cram patterns in theory β implement them
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- To remember how a pattern works, you need to implement it, that is, write it by hand.
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- And if you still want to learn them easily, learn them by type (structural, behavioral and creational).
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That way it's easier to connect the name with an understanding of what it's for, and then you'll never need to compare a strategy with a factory, because they belong to different groups.
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It makes sense to compare things that are similar, not things that are different.
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## 2. Start not with the name but with the problem
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A pattern is not a spell. It's a recipe for solving a specific problem.
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So this is how you should learn:
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> "There's such-and-such a problem β it's solved by this, this and this pattern."
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This way of thinking sticks and then works both in interviews and in practice.
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## 3. Associate the behavior a pattern describes with something familiar
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To quickly grasp the essence, connect it with something you already know.
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For example, `Builder` can be compared to a real foreman on a construction site.
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We tell him all our wishes in random order, he writes everything down, puts the work in the right order, but starts working only once we give him the money.
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```php
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$builder = new HouseBuilder();
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$builder
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->setWalls('brick')
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->setRoof('metal')
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->setWindows('panoramic')
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->setGarage('for two cars')
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->setFloorCount(2)
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->setHasBasement(true)
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->setFence('wooden')
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//...
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->setSecuritySystem('Ajax');
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//...
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// The foreman issues an invoice, which we pay
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$builder->getInvoice()->pay();
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//...
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// And builds only if it has been paid
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if ($builder->getInvoice()->isPaid()) {
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$house = $builder->build();
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}
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```
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## 4. Make refactoring.guru your go-to reading
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If you haven't yet, make [refactoring.guru](https://refactoring.guru/design-patterns) your go-to reading.
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Read one article at a time in your free time:
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- on a smoke break,
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- over your morning coffee,
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- sitting on the toilet (although this tip isn't for everyone π).
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## Conclusion
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> Patterns are not an interview bogeyman but a way of thinking.
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> When you understand them rather than just know their names, you start seeing them in real tasks, and then you no longer have to reinvent the wheel every time.
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---
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*First published in Ukrainian in the Telegram channel [βCreated to dieβ](https://t.me/php_while_true/16) on June 20, 2025.*