In what ways can PHP be optimized to efficiently manage checkbox state preservation while navigating through paginated content?

To efficiently manage checkbox state preservation while navigating through paginated content in PHP, you can utilize sessions to store the selected checkbox values and ensure they persist across different pages. By storing the checkbox values in the session, you can retrieve and set them accordingly when paginating through the content.

<?php
session_start();

// Check if form is submitted
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Store selected checkbox values in session
    $_SESSION['selected_checkboxes'] = $_POST['checkbox'];
}

// Retrieve selected checkbox values from session
$selected_checkboxes = isset($_SESSION['selected_checkboxes']) ? $_SESSION['selected_checkboxes'] : [];

// Display checkboxes with preserved state
for ($i = 1; $i <= 10; $i++) {
    $checked = in_array($i, $selected_checkboxes) ? 'checked' : '';
    echo "<input type='checkbox' name='checkbox[]' value='$i' $checked> Checkbox $i <br>";
}
?>