How can PHP be used to create a simple navigation system without manually adding variables to each file?

When creating a navigation system in PHP, you can use a single file to define your navigation links and then include it in all your pages. This way, you can easily update your navigation links in one place without having to manually add variables to each file. Below is an example of how you can achieve this: 

```php
// navigation.php
$navLinks = array(
    'Home' => 'index.php',
    'About' => 'about.php',
    'Services' => 'services.php',
    'Contact' => 'contact.php'
);

// index.php
include 'navigation.php';
foreach ($navLinks as $title => $url) {
    echo "<a href='$url'>$title</a> ";
}
```

By including the `navigation.php` file in your pages, you can easily generate your navigation links without having to manually add variables to each file.

Keywords

PHP navigation system dynamic include header

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