What are some best practices for managing content visibility based on specific page criteria in PHP?

To manage content visibility based on specific page criteria in PHP, you can use conditional statements to check the current page and display content accordingly. This can be useful for showing different content on different pages, such as displaying a sidebar on a blog post page but not on the homepage. 

<?php
// Get the current page URL
$current_page = $_SERVER['REQUEST_URI'];

// Check if the current page is a blog post
if (strpos($current_page, 'blog-post') !== false) {
    // Display sidebar content
    echo '<div class="sidebar">Sidebar content here</div>';
}
?>

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