diff options
Diffstat (limited to 'system/helpers/date_helper.php')
| -rw-r--r-- | system/helpers/date_helper.php | 152 |
1 files changed, 60 insertions, 92 deletions
diff --git a/system/helpers/date_helper.php b/system/helpers/date_helper.php index a655c1f21..cb15f6df6 100644 --- a/system/helpers/date_helper.php +++ b/system/helpers/date_helper.php @@ -739,121 +739,89 @@ if ( ! function_exists('date_range')) $range = array(); - if (is_php('5.2')) - { - /* NOTE: Even though the DateTime object has many useful features, it appears that - * it doesn't always handle properly timezones, when timestamps are passed - * directly to its constructor. Neither of the following gave proper results: - * - * new DateTime('<timestamp>') - * new DateTime('<timestamp>', '<timezone>') - * - * --- available in PHP 5.3: - * - * DateTime::createFromFormat('<format>', '<timestamp>') - * DateTime::createFromFormat('<format>', '<timestamp>', '<timezone') - * - * ... so we'll have to set the timestamp after the object is instantiated. - * Furthermore, in PHP 5.3 we can use DateTime::setTimestamp() to do that and - * given that we have UNIX timestamps - we should use it. - */ - $from = new DateTime(); - - if (is_php('5.3')) - { - $from->setTimestamp($unix_start); - if ($is_unix) - { - $arg = new DateTime(); - $arg->setTimestamp($mixed); - } - else - { - $arg = (int) $mixed; - } - - $period = new DatePeriod($from, new DateInterval('P1D'), $arg); - foreach ($period as $date) - { - $range[] = $date->format($format); - } - - /* If a period end date was passed to the DatePeriod constructor, it might not - * be in our results. Not sure if this is a bug or it's just possible because - * the end date might actually be less than 24 hours away from the previously - * generated DateTime object, but either way - we have to append it manually. - */ - if ( ! is_int($arg) && $range[count($range) - 1] !== $arg->format($format)) - { - $range[] = $arg->format($format); - } - - return $range; - } + /* NOTE: Even though the DateTime object has many useful features, it appears that + * it doesn't always handle properly timezones, when timestamps are passed + * directly to its constructor. Neither of the following gave proper results: + * + * new DateTime('<timestamp>') + * new DateTime('<timestamp>', '<timezone>') + * + * --- available in PHP 5.3: + * + * DateTime::createFromFormat('<format>', '<timestamp>') + * DateTime::createFromFormat('<format>', '<timestamp>', '<timezone') + * + * ... so we'll have to set the timestamp after the object is instantiated. + * Furthermore, in PHP 5.3 we can use DateTime::setTimestamp() to do that and + * given that we have UNIX timestamps - we should use it. + */ + $from = new DateTime(); - $from->setDate(date('Y', $unix_start), date('n', $unix_start), date('j', $unix_start)); - $from->setTime(date('G', $unix_start), date('i', $unix_start), date('s', $unix_start)); + if (is_php('5.3')) + { + $from->setTimestamp($unix_start); if ($is_unix) { $arg = new DateTime(); - $arg->setDate(date('Y', $mixed), date('n', $mixed), date('j', $mixed)); - $arg->setTime(date('G', $mixed), date('i', $mixed), date('s', $mixed)); + $arg->setTimestamp($mixed); } else { $arg = (int) $mixed; } - $range[] = $from->format($format); - if (is_int($arg)) // Day intervals + $period = new DatePeriod($from, new DateInterval('P1D'), $arg); + foreach ($period as $date) { - do - { - $from->modify('+1 day'); - $range[] = $from->format($format); - } - while (--$arg > 0); + $range[] = $date->format($format); } - else // end date UNIX timestamp - { - for ($from->modify('+1 day'), $end_check = $arg->format('Ymd'); $from->format('Ymd') < $end_check; $from->modify('+1 day')) - { - $range[] = $from->format($format); - } - // Our loop only appended dates prior to our end date + /* If a period end date was passed to the DatePeriod constructor, it might not + * be in our results. Not sure if this is a bug or it's just possible because + * the end date might actually be less than 24 hours away from the previously + * generated DateTime object, but either way - we have to append it manually. + */ + if ( ! is_int($arg) && $range[count($range) - 1] !== $arg->format($format)) + { $range[] = $arg->format($format); } return $range; } - /* ---------------------------------------------------------------------------------- - * PHP Version is < 5.2. We have no other option, but to calculate manually ... - * - * NOTE: If we do something like this: - * - * $unix_timestamp + 86400 - * - * ... due to DST, there's a possibility of calculation errors and/or incorrect - * hours generated (if the specified format displays such data). - */ - - $from = $to = array(); - sscanf(date('Y-n-j G:i:s', $unix_start), '%d-%d-%d %d:%d:%d', $from['y'], $from['mo'], $from['d'], $from['h'], $from['mi'], $from['s']); - - // If we don't have the end timestamp, let mktime() calculate it - $unix_end = ($is_unix) ? (int) $mixed : mktime($from['h'], $from['mi'], $from['s'], $from['mo'], $from['d'] + $mixed, $from['y']); + $from->setDate(date('Y', $unix_start), date('n', $unix_start), date('j', $unix_start)); + $from->setTime(date('G', $unix_start), date('i', $unix_start), date('s', $unix_start)); + if ($is_unix) + { + $arg = new DateTime(); + $arg->setDate(date('Y', $mixed), date('n', $mixed), date('j', $mixed)); + $arg->setTime(date('G', $mixed), date('i', $mixed), date('s', $mixed)); + } + else + { + $arg = (int) $mixed; + } + $range[] = $from->format($format); - $end_check = date('Ymd', $unix_end); - while (date('Ymd', $unix_start = mktime($from['h'], $from['mi'], $from['s'], $from['mo'], $from['d'], $from['y'])) !== $end_check) + if (is_int($arg)) // Day intervals { - $range[] = date($format, $unix_start); - $from['d']++; + do + { + $from->modify('+1 day'); + $range[] = $from->format($format); + } + while (--$arg > 0); } + else // end date UNIX timestamp + { + for ($from->modify('+1 day'), $end_check = $arg->format('Ymd'); $from->format('Ymd') < $end_check; $from->modify('+1 day')) + { + $range[] = $from->format($format); + } - // Our loop only appended dates prior to our end date - $range[] = date($format, $unix_end); + // Our loop only appended dates prior to our end date + $range[] = $arg->format($format); + } return $range; } |