Are there any best practices for sorting arrays in PHP, especially when dealing with calendar events?

When sorting arrays in PHP, especially when dealing with calendar events, it is important to consider the date and time format of the events. One best practice is to use the `usort()` function along with a custom comparison function that properly handles date and time formats. This allows for accurate sorting of calendar events based on their start times. 

// Sample array of calendar events with start times
$events = [
    ['title' => 'Event 1', 'start_time' => '2022-01-15 10:00:00'],
    ['title' => 'Event 2', 'start_time' => '2022-01-10 15:30:00'],
    ['title' => 'Event 3', 'start_time' => '2022-01-20 09:00:00'],
];

// Custom comparison function for sorting events by start time
function compareEvents($event1, $event2) {
    return strtotime($event1['start_time']) - strtotime($event2['start_time']);
}

// Sort the events array based on start time
usort($events, 'compareEvents');

// Output sorted events
foreach ($events as $event) {
    echo $event['title'] . ' - ' . $event['start_time'] . PHP_EOL;
}

Keywords

array sorting PHP calendar events usort date sorting

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