How can PHP developers effectively troubleshoot issues related to excessive categories being displayed in an array during data retrieval and rendering?

Issue: To troubleshoot excessive categories being displayed in an array during data retrieval and rendering, PHP developers can implement pagination to limit the number of categories displayed per page. Code snippet: 

// Define the number of categories to display per page
$categoriesPerPage = 10;

// Get the current page number from the URL parameter
$page = isset($_GET['page']) ? $_GET['page'] : 1;

// Calculate the offset based on the current page number
$offset = ($page - 1) * $categoriesPerPage;

// Query the database to retrieve categories with pagination
$query = "SELECT * FROM categories LIMIT $offset, $categoriesPerPage";
$result = mysqli_query($connection, $query);

// Display the categories
while ($row = mysqli_fetch_assoc($result)) {
    echo $row['category_name'] . "<br>";
}

// Display pagination links
$totalCategories = mysqli_num_rows(mysqli_query($connection, "SELECT * FROM categories"));
$totalPages = ceil($totalCategories / $categoriesPerPage);

for ($i = 1; $i <= $totalPages; $i++) {
    echo "<a href='?page=$i'>$i</a> ";
}

Keywords

PHP troubleshooting array data retrieval rendering

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