diff options
Diffstat (limited to 'system/helpers/date_helper.php')
| -rw-r--r-- | system/helpers/date_helper.php | 189 |
1 files changed, 148 insertions, 41 deletions
diff --git a/system/helpers/date_helper.php b/system/helpers/date_helper.php index a45b3d7ac..d54e01968 100644 --- a/system/helpers/date_helper.php +++ b/system/helpers/date_helper.php @@ -1,4 +1,4 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php /** * CodeIgniter * @@ -24,6 +24,7 @@ * @since Version 1.0 * @filesource */ +defined('BASEPATH') OR exit('No direct script access allowed'); /** * CodeIgniter Date Helpers @@ -119,19 +120,16 @@ if ( ! function_exists('standard_date')) * * As of PHP 5.2, the DateTime extension provides constants that * serve for the exact same purpose and are used with date(). - * Due to that, this function is DEPRECATED and should be removed - * in CodeIgniter 3.1+. * - * Here are two examples of how you should replace it: + * @todo Remove in version 3.1+. + * @deprecated 3.0.0 Use PHP's native date() instead. + * @link http://www.php.net/manual/en/class.datetime.php#datetime.constants.types * - * date(DATE_RFC822, now()); // default - * date(DATE_W3C, $time); // a different format and time + * @example date(DATE_RFC822, now()); // default + * @example date(DATE_W3C, $time); // a different format and time * - * Reference: http://www.php.net/manual/en/class.datetime.php#datetime.constants.types - * - * @deprecated - * @param string the chosen format - * @param int Unix timestamp + * @param string $fmt = 'DATE_RFC822' the chosen format + * @param int $time = NULL Unix timestamp * @return string */ function standard_date($fmt = 'DATE_RFC822', $time = NULL) @@ -362,8 +360,8 @@ if ( ! function_exists('mysql_to_unix')) /** * Converts a MySQL Timestamp to Unix * - * @param int Unix timestamp - * @return int + * @param int MySQL timestamp YYYY-MM-DD HH:MM:SS + * @return int Unix timstamp */ function mysql_to_unix($time = '') { @@ -452,20 +450,13 @@ if ( ! function_exists('human_to_unix')) return FALSE; } - $split = explode(' ', $datestr); - - list($year, $month, $day) = explode('-', $split[0]); + sscanf($datestr, '%d-%d-%d %s %s', $year, $month, $day, $time, $ampm); + sscanf($time, '%d:%d:%d', $hour, $min, $sec); + isset($sec) OR $sec = 0; - $ex = explode(':', $split['1']); - - $hour = (int) $ex[0]; - $min = (int) $ex[1]; - $sec = ( ! empty($ex[2]) && preg_match('/[0-9]{1,2}/', $ex[2])) - ? (int) $ex[2] : 0; - - if (isset($split[2])) + if (isset($ampm)) { - $ampm = strtolower($split[2]); + $ampm = strtolower($ampm); if ($ampm[0] === 'p' && $hour < 12) { @@ -575,22 +566,7 @@ if ( ! function_exists('timezone_menu')) $menu .= ' class="'.$class.'"'; } - // Generate a string from the attributes submitted, if any - if (is_array($attributes)) - { - $atts = ''; - foreach ($attributes as $key => $val) - { - $atts .= ' '.$key.'="'.$val.'"'; - } - $attributes = $atts; - } - elseif (is_string($attributes) && strlen($attributes) > 0) - { - $attributes = ' '.$attributes; - } - - $menu .= $attributes.">\n"; + $menu .= _stringify_attributes($attributes).">\n"; foreach (timezones() as $key => $val) { @@ -672,5 +648,136 @@ if ( ! function_exists('timezones')) } } +// ------------------------------------------------------------------------ + +if ( ! function_exists('date_range')) +{ + /** + * Date range + * + * Returns a list of dates within a specified period. + * + * @param int unix_start UNIX timestamp of period start date + * @param int unix_end|days UNIX timestamp of period end date + * or interval in days. + * @param mixed is_unix Specifies whether the second parameter + * is a UNIX timestamp or a day interval + * - TRUE or 'unix' for a timestamp + * - FALSE or 'days' for an interval + * @param string date_format Output date format, same as in date() + * @return array + */ + function date_range($unix_start = '', $mixed = '', $is_unix = TRUE, $format = 'Y-m-d') + { + if ($unix_start == '' OR $mixed == '' OR $format == '') + { + return FALSE; + } + + $is_unix = ! ( ! $is_unix OR $is_unix === 'days'); + + // Validate input and try strtotime() on invalid timestamps/intervals, just in case + if ( ( ! ctype_digit((string) $unix_start) && ($unix_start = @strtotime($unix_time)) === FALSE) + OR ( ! ctype_digit((string) $mixed) && ($is_unix === FALSE OR ($mixed = @strtotime($mixed)) === FALSE)) + OR ($is_unix === TRUE && $mixed < $unix_start)) + { + return FALSE; + } + + if ($is_unix && ($unix_start == $mixed OR date($format, $unix_start) === date($format, $mixed))) + { + return array($start_date); + } + + $range = array(); + + /* 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; + } + + $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); + + if (is_int($arg)) // Day intervals + { + 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[] = $arg->format($format); + } + + return $range; + } +} + /* End of file date_helper.php */ /* Location: ./system/helpers/date_helper.php */
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