What best practices should be followed when handling global and local meta information in PHP?

When handling global and local meta information in PHP, it is important to follow best practices to ensure consistency and maintainability. One approach is to define global meta information in a centralized configuration file, and then access and use this information throughout your application. For local meta information, such as page titles or descriptions, consider using a template system or passing variables to your views to dynamically set this information. 

// Define global meta information in a configuration file
$config = [
    'site_name' => 'My Website',
    'site_description' => 'Welcome to my website!',
    'site_keywords' => 'PHP, web development, programming',
];

// Access global meta information in your application
echo '<title>' . $config['site_name'] . '</title>';
echo '<meta name="description" content="' . $config['site_description'] . '">';
echo '<meta name="keywords" content="' . $config['site_keywords'] . '">';

// Set local meta information in your views
$page_title = 'Home Page';
$page_description = 'This is the homepage of my website';
$page_keywords = 'homepage, welcome';

// Use local meta information in your views
echo '<title>' . $page_title . ' | ' . $config['site_name'] . '</title>';
echo '<meta name="description" content="' . $page_description . '">';
echo '<meta name="keywords" content="' . $page_keywords . '">';

Keywords

global variables local variables meta information PHP functions scope

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