49 lines
1.2 KiB
Markdown
49 lines
1.2 KiB
Markdown
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---
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title: >
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Cleaner PHP code with promoted constructor properties
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pubDate: 2023-04-12
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permalink: >-
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archive/2023/04/12/cleaner-php-code-with-promoted-constructor-properties
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tags:
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- php
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---
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One of my favorite features that was introducted in PHP 8 was promoted constructor properties.
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If I'm passing arguments into a constructor, I can declare a visibility and it will be promoted to a property on the class.
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Here's an example of a value of a data transfer object that accepts a sort code and account number as strings:
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```php
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class AccountDetails {
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public function __construct(
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public string $accountNumber,
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public string $sortCode,
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) {}
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}
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```
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Without promoted constructor properties, I'd need to create the properties and assign them manually, and I'd have this:
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```php
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class AccountDetails {
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public string $accountNumber;
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public string $sortCode;
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public function __construct(
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string $accountNumber,
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string $sortCode,
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) {
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$this->accountNumber = $accountNumber;
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$this->sortCode = $sortCode;
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}
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}
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```
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Whilst text editors and IDEs can create the properties automatically, I prefer this as it's less code, more readable and easier to understand.
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