What are the common mistakes made when comparing timestamps in PHP, and how can they be avoided?

When comparing timestamps in PHP, a common mistake is comparing timestamps as strings instead of integers. To avoid this mistake, make sure to convert the timestamps to integers before comparing them. This can be done using the `strtotime()` function in PHP. 

$timestamp1 = strtotime('2022-01-01 00:00:00');
$timestamp2 = strtotime('2022-01-02 00:00:00');

if ($timestamp1 < $timestamp2) {
    echo 'Timestamp 1 is before Timestamp 2';
} elseif ($timestamp1 > $timestamp2) {
    echo 'Timestamp 1 is after Timestamp 2';
} else {
    echo 'Timestamps are equal';
}

Keywords

timestamp comparison mistakes PHP functions date and time

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