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title:
  - value: |
      Cleaner PHP code with promoted constructor properties
created:
  - value: '2023-04-12T00:00:00+00:00'
changed:
  - value: '2025-05-11T09:00:44+00:00'
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body:
  - value: |
      <p>One of my favorite features that was introducted in PHP 8 was promoted constructor properties.</p>

      <p>If I'm passing arguments into a constructor, I can declare a visibility and it will be promoted to a property on the class.</p>

      <p>Here's an example of a value of a data transfer object that accepts a sort code and account number as strings:</p>

      <pre><code class="language-php">class AccountDetails {

        public function __construct(
          public string $accountNumber,
          public string $sortCode,
        ) {}

      }
      </code></pre>

      <p>Without promoted constructor properties, I'd need to create the properties and assign them manually, and I'd have this:</p>

      <pre><code class="language-php">class AccountDetails {

        public string $accountNumber;

        public string $sortCode;

        public function __construct(
          string $accountNumber,
          string $sortCode,
        ) {
          $this-&gt;accountNumber = $accountNumber;
          $this-&gt;sortCode = $sortCode;
        }

      }
      </code></pre>

      <p>Whilst text editors and IDEs can create the properties automatically, I prefer this as it's less code, more readable and easier to understand.</p>

              
    format: full_html
    processed: |
      <p>One of my favorite features that was introducted in PHP 8 was promoted constructor properties.</p>

      <p>If I'm passing arguments into a constructor, I can declare a visibility and it will be promoted to a property on the class.</p>

      <p>Here's an example of a value of a data transfer object that accepts a sort code and account number as strings:</p>

      <pre><code class="language-php">class AccountDetails {

        public function __construct(
          public string $accountNumber,
          public string $sortCode,
        ) {}

      }
      </code></pre>

      <p>Without promoted constructor properties, I'd need to create the properties and assign them manually, and I'd have this:</p>

      <pre><code class="language-php">class AccountDetails {

        public string $accountNumber;

        public string $sortCode;

        public function __construct(
          string $accountNumber,
          string $sortCode,
        ) {
          $this-&gt;accountNumber = $accountNumber;
          $this-&gt;sortCode = $sortCode;
        }

      }
      </code></pre>

      <p>Whilst text editors and IDEs can create the properties automatically, I prefer this as it's less code, more readable and easier to understand.</p>

              
    summary: null
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