What are the potential pitfalls of using a multidimensional array in PHP for time comparison?

When using a multidimensional array in PHP for time comparison, a potential pitfall is that comparing timestamps directly may not give accurate results due to differences in time zones or date formats. To solve this issue, it is recommended to convert the timestamps to a standardized format (such as Unix timestamp) before comparing them.

// Convert timestamps to Unix timestamp for accurate comparison
$timestamp1 = strtotime($multidimensionalArray[0]['timestamp']);
$timestamp2 = strtotime($multidimensionalArray[1]['timestamp']);

// Compare the timestamps
if ($timestamp1 < $timestamp2) {
    echo "Timestamp 1 is earlier than Timestamp 2";
} elseif ($timestamp1 > $timestamp2) {
    echo "Timestamp 1 is later than Timestamp 2";
} else {
    echo "Timestamps are equal";
}