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title:
  - value: "Don't repeat yourself"
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  - value: |
      <p>When most people think of "Don't repeat yourself" or DRY, they probably think about not duplicating logic in code.</p>

      <p>If you've written some functionality once, you should avoid writing it again.</p>

      <p>I was recently browsing the code for an open source package and saw this:</p>

      <pre><code class="php">/**
       * Flush everything.
       */
      public function flush(): void;

      /**
       * Sets the formatter.
       */
      public function setFormatter(FormatterInterface $formatter): void;

      /**
       * Gets the formatter.
       */
      public function getFormatter(): FormatterInterface;
      </code></pre>

      <p>This is another instance of repetition.</p>

      <p>The docblocks are just repeating what the code already tells me.</p>

      <p>I can understand from the method names what each function does, and I can see what parameters they have and their types.</p>

      <p>I can see if each method returns anything and, if so, what type it returns - e.g. <code>getFormatter</code> returns a <code>FormatterInterface</code>.</p>

      <p>I think these docblocks aren't needed and in my projects, would suggest they be removed.</p>

      <p>Unless they're adding more information, such as <a href="/daily/2025/03/21/phpdoc">PHPStan PHPDoc types</a>, there's no need to repeat what the code already says.</p>

              
    format: full_html
    processed: |
      <p>When most people think of "Don't repeat yourself" or DRY, they probably think about not duplicating logic in code.</p>

      <p>If you've written some functionality once, you should avoid writing it again.</p>

      <p>I was recently browsing the code for an open source package and saw this:</p>

      <pre><code class="php">/**
       * Flush everything.
       */
      public function flush(): void;

      /**
       * Sets the formatter.
       */
      public function setFormatter(FormatterInterface $formatter): void;

      /**
       * Gets the formatter.
       */
      public function getFormatter(): FormatterInterface;
      </code></pre>

      <p>This is another instance of repetition.</p>

      <p>The docblocks are just repeating what the code already tells me.</p>

      <p>I can understand from the method names what each function does, and I can see what parameters they have and their types.</p>

      <p>I can see if each method returns anything and, if so, what type it returns - e.g. <code>getFormatter</code> returns a <code>FormatterInterface</code>.</p>

      <p>I think these docblocks aren't needed and in my projects, would suggest they be removed.</p>

      <p>Unless they're adding more information, such as <a href="http://default/daily/2025/03/21/phpdoc">PHPStan PHPDoc types</a>, there's no need to repeat what the code already says.</p>

              
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