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Use rolling window for translating 2-digit years into 4-digit years #22581

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merged 1 commit into from
Jan 20, 2022
+9 −11
Merged

Use rolling window for translating 2-digit years into 4-digit years #22581

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translate 2-digit years to 4 using rolling -95yr to +5yr window
@highfalutin
highfalutin committed Jan 20, 2022

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commit 3027c167a4ddce33cfb6c9ce6fa4629b7fa9048f
20 changes: 9 additions & 11 deletions CRM/Utils/Date.php
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Original file line number Diff line number Diff line change
@@ -540,8 +540,6 @@ public static function isoToMysql($iso) {
*/
public static function convertToDefaultDate(&$params, $dateType, $dateParam) {
$now = getdate();
$cen = substr($now['year'], 0, 2);
$prevCen = $cen - 1;

$value = NULL;
if (!empty($params[$dateParam])) {
@@ -693,15 +691,15 @@ public static function convertToDefaultDate(&$params, $dateType, $dateParam) {
$month = ($month < 10) ? "0" . "$month" : $month;
$day = ($day < 10) ? "0" . "$day" : $day;

$year = (int ) $year;
// simple heuristic to determine what century to use
// 00 - 20 is always 2000 - 2020
// 21 - 99 is always 1921 - 1999
if ($year < 21) {
$year = (strlen($year) == 1) ? $cen . '0' . $year : $cen . $year;
}
elseif ($year < 100) {
$year = $prevCen . $year;
$year = (int) $year;
if ($year < 100) {
$year = substr($now['year'], 0, 2) * 100 + $year;
if ($year > ($now['year'] + 5)) {
$year = $year - 100;
}
elseif ($year <= ($now['year'] - 95)) {
$year = $year + 100;
}
}

if ($params[$dateParam]) {