What are best practices for maintaining filter selections in pagination in PHP?

When implementing pagination with filter selections in PHP, it is important to maintain the selected filters when navigating through different pages. One way to achieve this is by storing the filter selections in session variables and passing them along with the pagination links. This ensures that the filters remain applied even when moving between pages. 

// Start session to store filter selections
session_start();

// Check if filter selections are submitted
if(isset($_POST['filter'])){
    // Store filter selections in session variables
    $_SESSION['filters'] = $_POST['filter'];
}

// Retrieve filter selections from session
$filters = isset($_SESSION['filters']) ? $_SESSION['filters'] : '';

// Display filter form
echo '<form method="post">';
echo '<input type="text" name="filter" value="'.$filters.'">';
echo '<input type="submit" value="Apply Filter">';
echo '</form>';

// Pagination logic with filter selections
// Pass filter selections along with pagination links
echo '<a href="page.php?page=1&filter='.$filters.'">1</a>';
echo '<a href="page.php?page=2&filter='.$filters.'">2</a>';
// Add more pagination links as needed

Keywords

pagination filter selections PHP maintaining best practices

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