What is the significance of using a sortable date format in PHP when comparing dates?

When comparing dates in PHP, it is important to use a sortable date format (e.g. YYYY-MM-DD) to ensure accurate comparisons. This format ensures that dates are compared based on their actual chronological order rather than alphabetically, which can lead to incorrect results when using other date formats. 

$date1 = '2022-01-15';
$date2 = '2022-01-20';

if ($date1 < $date2) {
    echo "Date 1 is before Date 2";
} elseif ($date1 > $date2) {
    echo "Date 1 is after Date 2";
} else {
    echo "Date 1 is the same as Date 2";
}

Keywords

sortable date format PHP comparing dates significance date comparison

Related Questions