How can a beginner in PHP effectively sort blog entries by date in a script?

To sort blog entries by date in PHP, beginners can use the `usort` function along with a custom comparison function that compares the dates of the entries. This allows the entries to be sorted in ascending or descending order based on their date.

// Sample array of blog entries with 'date' field
$blogEntries = [
    ['title' => 'Entry 1', 'date' => '2022-01-15'],
    ['title' => 'Entry 2', 'date' => '2022-02-10'],
    ['title' => 'Entry 3', 'date' => '2022-03-05']
];

// Custom comparison function to sort entries by date
usort($blogEntries, function($a, $b) {
    return strtotime($a['date']) - strtotime($b['date']);
});

// Output sorted blog entries
foreach ($blogEntries as $entry) {
    echo $entry['title'] . ' - ' . $entry['date'] . PHP_EOL;
}