How can dynamically generating HTML pages be a potential issue when displaying a large number of database entries in PHP?

When dynamically generating HTML pages to display a large number of database entries in PHP, the issue arises when the page becomes slow and unresponsive due to the amount of data being processed and rendered. To solve this issue, pagination can be implemented to break up the data into smaller, more manageable chunks that can be loaded on-demand. 

<?php
// Assuming $results is an array of database entries
$entriesPerPage = 10;
$totalEntries = count($results);
$totalPages = ceil($totalEntries / $entriesPerPage);

if (!isset($_GET['page']) || $_GET['page'] < 1 || $_GET['page'] > $totalPages) {
    $currentPage = 1;
} else {
    $currentPage = $_GET['page'];
}

$startIndex = ($currentPage - 1) * $entriesPerPage;
$endIndex = $startIndex + $entriesPerPage;

for ($i = $startIndex; $i < $endIndex && $i < $totalEntries; $i++) {
    // Display database entry
    echo $results[$i];
}

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

Keywords

dynamic HTML generation database entries performance pagination memory management

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