What potential pitfalls should PHP developers be aware of when comparing dates and times in their code?

One potential pitfall PHP developers should be aware of when comparing dates and times is the different timezones that can affect the accuracy of the comparison. To ensure accurate date and time comparisons, developers should always set the timezone explicitly before performing any date/time operations. 

// Set the timezone to UTC before comparing dates and times
date_default_timezone_set('UTC');

// Example date comparison
$date1 = new DateTime('2022-01-01');
$date2 = new DateTime('2022-01-02');

if ($date1 < $date2) {
    echo "Date 1 is before Date 2";
} else {
    echo "Date 2 is before Date 1";
}

Keywords

DateTime timezone comparison strtotime timezone conversion

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