What are some best practices for organizing and structuring PHP code to easily locate and modify specific sections like header navigation links?

When organizing and structuring PHP code to easily locate and modify specific sections like header navigation links, it is best practice to separate the code for the header into its own file, such as header.php, and then include this file in each page where the header is needed. This way, any changes to the header navigation links can be made in one central location and will be reflected across all pages that include the header file. 

// header.php
<nav>
    <ul>
        <li><a href="index.php">Home</a></li>
        <li><a href="about.php">About</a></li>
        <li><a href="services.php">Services</a></li>
        <li><a href="contact.php">Contact</a></li>
    </ul>
</nav>
```

To include the header in a page, you can simply use the following code:

```php
// index.php
include 'header.php';
// rest of the page content

Keywords

PHP code organization structure header navigation modification

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