How can inline styles affect PHP code readability and functionality?

Inline styles can make PHP code less readable and harder to maintain because it mixes presentation logic with business logic. To improve readability and maintainability, it's recommended to separate styling from PHP code by using external CSS files or adding classes to HTML elements that can be styled with CSS. This separation of concerns helps keep code organized and makes it easier to make changes to the styling without affecting the PHP logic. 

// Bad practice with inline styles
echo "<div style='color: red;'>Hello, World!</div>";

// Good practice with separate CSS file
echo "<div class='red-text'>Hello, World!</div>";
```
CSS file:
```css
.red-text {
  color: red;
}

Keywords

inline styles PHP code readability functionality CSS styling

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