1
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
5
* An open source application development framework for PHP 5.1.6 or newer
8
* @author ExpressionEngine Dev Team
9
* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
10
* @license http://codeigniter.com/user_guide/license.html
11
* @link http://codeigniter.com
16
// ------------------------------------------------------------------------
19
* CodeIgniter Date Helpers
21
* @package CodeIgniter
24
* @author ExpressionEngine Dev Team
25
* @link http://codeigniter.com/user_guide/helpers/date_helper.html
28
// ------------------------------------------------------------------------
33
* Returns time() or its GMT equivalent based on the config file preference
38
if ( ! function_exists('now'))
42
$CI =& get_instance();
44
if (strtolower($CI->config->item('time_reference')) == 'gmt')
47
$system_time = mktime(gmdate("H", $now), gmdate("i", $now), gmdate("s", $now), gmdate("m", $now), gmdate("d", $now), gmdate("Y", $now));
49
if (strlen($system_time) < 10)
51
$system_time = time();
52
log_message('error', 'The Date class could not set a proper GMT timestamp so the local time() value was used.');
64
// ------------------------------------------------------------------------
67
* Convert MySQL Style Datecodes
69
* This function is identical to PHPs date() function,
70
* except that it allows date codes to be formatted using
71
* the MySQL style, where each code letter is preceded
72
* with a percent sign: %Y %m %d etc...
74
* The benefit of doing dates this way is that you don't
75
* have to worry about escaping your text letters that
76
* match the date codes.
83
if ( ! function_exists('mdate'))
85
function mdate($datestr = '', $time = '')
93
$datestr = str_replace('%\\', '', preg_replace("/([a-z]+?){1}/i", "\\\\\\1", $datestr));
94
return date($datestr, $time);
98
// ------------------------------------------------------------------------
103
* Returns a date formatted according to the submitted standard.
106
* @param string the chosen format
107
* @param integer Unix timestamp
110
if ( ! function_exists('standard_date'))
112
function standard_date($fmt = 'DATE_RFC822', $time = '')
115
'DATE_ATOM' => '%Y-%m-%dT%H:%i:%s%Q',
116
'DATE_COOKIE' => '%l, %d-%M-%y %H:%i:%s UTC',
117
'DATE_ISO8601' => '%Y-%m-%dT%H:%i:%s%Q',
118
'DATE_RFC822' => '%D, %d %M %y %H:%i:%s %O',
119
'DATE_RFC850' => '%l, %d-%M-%y %H:%i:%s UTC',
120
'DATE_RFC1036' => '%D, %d %M %y %H:%i:%s %O',
121
'DATE_RFC1123' => '%D, %d %M %Y %H:%i:%s %O',
122
'DATE_RSS' => '%D, %d %M %Y %H:%i:%s %O',
123
'DATE_W3C' => '%Y-%m-%dT%H:%i:%s%Q'
126
if ( ! isset($formats[$fmt]))
131
return mdate($formats[$fmt], $time);
135
// ------------------------------------------------------------------------
140
* Returns a span of seconds in this format:
141
* 10 days 14 hours 36 minutes 47 seconds
144
* @param integer a number of seconds
145
* @param integer Unix timestamp
148
if ( ! function_exists('timespan'))
150
function timespan($seconds = 1, $time = '')
152
$CI =& get_instance();
153
$CI->lang->load('date');
155
if ( ! is_numeric($seconds))
160
if ( ! is_numeric($time))
165
if ($time <= $seconds)
171
$seconds = $time - $seconds;
175
$years = floor($seconds / 31536000);
179
$str .= $years.' '.$CI->lang->line((($years > 1) ? 'date_years' : 'date_year')).', ';
182
$seconds -= $years * 31536000;
183
$months = floor($seconds / 2628000);
185
if ($years > 0 OR $months > 0)
189
$str .= $months.' '.$CI->lang->line((($months > 1) ? 'date_months' : 'date_month')).', ';
192
$seconds -= $months * 2628000;
195
$weeks = floor($seconds / 604800);
197
if ($years > 0 OR $months > 0 OR $weeks > 0)
201
$str .= $weeks.' '.$CI->lang->line((($weeks > 1) ? 'date_weeks' : 'date_week')).', ';
204
$seconds -= $weeks * 604800;
207
$days = floor($seconds / 86400);
209
if ($months > 0 OR $weeks > 0 OR $days > 0)
213
$str .= $days.' '.$CI->lang->line((($days > 1) ? 'date_days' : 'date_day')).', ';
216
$seconds -= $days * 86400;
219
$hours = floor($seconds / 3600);
221
if ($days > 0 OR $hours > 0)
225
$str .= $hours.' '.$CI->lang->line((($hours > 1) ? 'date_hours' : 'date_hour')).', ';
228
$seconds -= $hours * 3600;
231
$minutes = floor($seconds / 60);
233
if ($days > 0 OR $hours > 0 OR $minutes > 0)
237
$str .= $minutes.' '.$CI->lang->line((($minutes > 1) ? 'date_minutes' : 'date_minute')).', ';
240
$seconds -= $minutes * 60;
245
$str .= $seconds.' '.$CI->lang->line((($seconds > 1) ? 'date_seconds' : 'date_second')).', ';
248
return substr(trim($str), 0, -1);
252
// ------------------------------------------------------------------------
255
* Number of days in a month
257
* Takes a month/year as input and returns the number of days
258
* for the given month/year. Takes leap years into consideration.
261
* @param integer a numeric month
262
* @param integer a numeric year
265
if ( ! function_exists('days_in_month'))
267
function days_in_month($month = 0, $year = '')
269
if ($month < 1 OR $month > 12)
274
if ( ! is_numeric($year) OR strlen($year) != 4)
281
if ($year % 400 == 0 OR ($year % 4 == 0 AND $year % 100 != 0))
287
$days_in_month = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
288
return $days_in_month[$month - 1];
292
// ------------------------------------------------------------------------
295
* Converts a local Unix timestamp to GMT
298
* @param integer Unix timestamp
301
if ( ! function_exists('local_to_gmt'))
303
function local_to_gmt($time = '')
308
return mktime( gmdate("H", $time), gmdate("i", $time), gmdate("s", $time), gmdate("m", $time), gmdate("d", $time), gmdate("Y", $time));
312
// ------------------------------------------------------------------------
315
* Converts GMT time to a localized value
317
* Takes a Unix timestamp (in GMT) as input, and returns
318
* at the local value based on the timezone and DST setting
322
* @param integer Unix timestamp
323
* @param string timezone
324
* @param bool whether DST is active
327
if ( ! function_exists('gmt_to_local'))
329
function gmt_to_local($time = '', $timezone = 'UTC', $dst = FALSE)
336
$time += timezones($timezone) * 3600;
347
// ------------------------------------------------------------------------
350
* Converts a MySQL Timestamp to Unix
353
* @param integer Unix timestamp
356
if ( ! function_exists('mysql_to_unix'))
358
function mysql_to_unix($time = '')
360
// We'll remove certain characters for backward compatibility
361
// since the formatting changed with MySQL 4.1
362
// YYYY-MM-DD HH:MM:SS
364
$time = str_replace('-', '', $time);
365
$time = str_replace(':', '', $time);
366
$time = str_replace(' ', '', $time);
371
substr($time, 10, 2),
372
substr($time, 12, 2),
380
// ------------------------------------------------------------------------
385
* Formats Unix timestamp to the following prototype: 2006-08-21 11:35 PM
388
* @param integer Unix timestamp
389
* @param bool whether to show seconds
390
* @param string format: us or euro
393
if ( ! function_exists('unix_to_human'))
395
function unix_to_human($time = '', $seconds = FALSE, $fmt = 'us')
397
$r = date('Y', $time).'-'.date('m', $time).'-'.date('d', $time).' ';
401
$r .= date('h', $time).':'.date('i', $time);
405
$r .= date('H', $time).':'.date('i', $time);
410
$r .= ':'.date('s', $time);
415
$r .= ' '.date('A', $time);
422
// ------------------------------------------------------------------------
425
* Convert "human" date to GMT
427
* Reverses the above process
430
* @param string format: us or euro
433
if ( ! function_exists('human_to_unix'))
435
function human_to_unix($datestr = '')
442
$datestr = trim($datestr);
443
$datestr = preg_replace("/\040+/", ' ', $datestr);
445
if ( ! preg_match('/^[0-9]{2,4}\-[0-9]{1,2}\-[0-9]{1,2}\s[0-9]{1,2}:[0-9]{1,2}(?::[0-9]{1,2})?(?:\s[AP]M)?$/i', $datestr))
450
$split = explode(' ', $datestr);
452
$ex = explode("-", $split['0']);
454
$year = (strlen($ex['0']) == 2) ? '20'.$ex['0'] : $ex['0'];
455
$month = (strlen($ex['1']) == 1) ? '0'.$ex['1'] : $ex['1'];
456
$day = (strlen($ex['2']) == 1) ? '0'.$ex['2'] : $ex['2'];
458
$ex = explode(":", $split['1']);
460
$hour = (strlen($ex['0']) == 1) ? '0'.$ex['0'] : $ex['0'];
461
$min = (strlen($ex['1']) == 1) ? '0'.$ex['1'] : $ex['1'];
463
if (isset($ex['2']) && preg_match('/[0-9]{1,2}/', $ex['2']))
465
$sec = (strlen($ex['2']) == 1) ? '0'.$ex['2'] : $ex['2'];
469
// Unless specified, seconds get set to zero.
473
if (isset($split['2']))
475
$ampm = strtolower($split['2']);
477
if (substr($ampm, 0, 1) == 'p' AND $hour < 12)
480
if (substr($ampm, 0, 1) == 'a' AND $hour == 12)
483
if (strlen($hour) == 1)
487
return mktime($hour, $min, $sec, $month, $day, $year);
491
// ------------------------------------------------------------------------
496
* Generates a drop-down menu of timezones.
499
* @param string timezone
500
* @param string classname
501
* @param string menu name
504
if ( ! function_exists('timezone_menu'))
506
function timezone_menu($default = 'UTC', $class = "", $name = 'timezones')
508
$CI =& get_instance();
509
$CI->lang->load('date');
511
if ($default == 'GMT')
514
$menu = '<select name="'.$name.'"';
518
$menu .= ' class="'.$class.'"';
523
foreach (timezones() as $key => $val)
525
$selected = ($default == $key) ? " selected='selected'" : '';
526
$menu .= "<option value='{$key}'{$selected}>".$CI->lang->line($key)."</option>\n";
529
$menu .= "</select>";
535
// ------------------------------------------------------------------------
540
* Returns an array of timezones. This is a helper function
541
* for various other ones in this library
544
* @param string timezone
547
if ( ! function_exists('timezones'))
549
function timezones($tz = '')
551
// Note: Don't change the order of these even though
552
// some items appear to be in the wrong order
605
return ( ! isset($zones[$tz])) ? 0 : $zones[$tz];
610
/* End of file date_helper.php */
611
/* Location: ./system/helpers/date_helper.php */
b'\\ No newline at end of file'