What potential pitfalls should be considered when comparing timestamps in PHP to determine if an entry is new?

When comparing timestamps in PHP to determine if an entry is new, one potential pitfall to consider is the timezone settings. If the timestamps are not in the same timezone, the comparison may not yield accurate results. To solve this issue, it's important to ensure that all timestamps are converted to a consistent timezone before comparison. 

// Set the timezone to be used for all timestamps
date_default_timezone_set('UTC');

// Get current timestamp
$currentTimestamp = time();

// Get timestamp of entry to compare
$entryTimestamp = strtotime($entry['timestamp']);

// Compare timestamps to determine if entry is new
if ($currentTimestamp - $entryTimestamp < 86400) {
    echo "Entry is new";
} else {
    echo "Entry is not new";
}

Keywords

timestamps PHP comparison new entry potential pitfalls

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