'; usort($timezone_identifiers, 'timezone_cmp'); $continent = ''; foreach($timezone_identifiers as $value) { $ex = explode("/", $value); if(count($ex) > 1) { if($ex[0] != $continent) { if($continent != '') $o .= ''; $continent = $ex[0]; $o .= ''; } if(count($ex) > 2) $city = substr($value,strpos($value,'/')+1); else $city = $ex[1]; } else { $city = $ex[0]; if($continent != t('Miscellaneous')) { $o .= ''; $continent = t('Miscellaneous'); $o .= ''; } } $city = str_replace('_', ' ', t($city)); $selected = (($value == $current) ? " selected=\"selected\" " : ""); $o .= "$city"; } $o .= ''; return $o; }} // General purpose date parse/convert function. // $from = source timezone // $to = dest timezone // $s = some parseable date/time string // $fmt = output format if(! function_exists('datetime_convert')) { function datetime_convert($from = 'UTC', $to = 'UTC', $s = 'now', $fmt = "Y-m-d H:i:s") { // Slight hackish adjustment so that 'zero' datetime actually returns what is intended // otherwise we end up with -0001-11-30 ... // add 32 days so that we at least get year 00, and then hack around the fact that // months and days always start with 1. if(substr($s,0,10) == '0000-00-00') { $d = new DateTime($s . ' + 32 days', new DateTimeZone('UTC')); return str_replace('1','0',$d->format($fmt)); } $d = new DateTime($s, new DateTimeZone($from)); $d->setTimeZone(new DateTimeZone($to)); return($d->format($fmt)); }} // wrapper for date selector, tailored for use in birthday fields function dob($dob) { list($year,$month,$day) = sscanf($dob,'%4d-%2d-%2d'); $y = datetime_convert('UTC',date_default_timezone_get(),'now','Y'); $o = datesel('',1920,$y,true,$year,$month,$day); return $o; } // returns a date selector. // $pre = prefix (if needed) for HTML name and class fields // $ymin = first year shown in selector dropdown // $ymax = last year shown in selector dropdown // $allow_blank = allow an empty response on any field // $y = already selected year // $m = already selected month // $d = already selected day if(! function_exists('datesel')) { function datesel($pre,$ymin,$ymax,$allow_blank,$y,$m,$d) { $o = ''; $o .= ""; if($allow_blank) { $sel = (($y == '0000') ? " selected=\"selected\" " : ""); $o .= ""; } if($ymax > $ymin) { for($x = $ymax; $x >= $ymin; $x --) { $sel = (($x == $y) ? " selected=\"selected\" " : ""); $o .= "$x"; } } else { for($x = $ymax; $x <= $ymin; $x ++) { $sel = (($x == $y) ? " selected=\"selected\" " : ""); $o .= "$x"; } } $o .= " "; for($x = (($allow_blank) ? 0 : 1); $x <= 12; $x ++) { $sel = (($x == $m) ? " selected=\"selected\" " : ""); $y = (($x) ? $x : ''); $o .= "$y"; } $o .= " "; for($x = (($allow_blank) ? 0 : 1); $x <= 31; $x ++) { $sel = (($x == $d) ? " selected=\"selected\" " : ""); $y = (($x) ? $x : ''); $o .= "$y"; } $o .= ""; return $o; }} if(! function_exists('timesel')) { function timesel($pre,$h,$m) { $o = ''; $o .= ""; for($x = 0; $x < 24; $x ++) { $sel = (($x == $h) ? " selected=\"selected\" " : ""); $o .= "$x"; } $o .= " : "; for($x = 0; $x < 60; $x ++) { $sel = (($x == $m) ? " selected=\"selected\" " : ""); $o .= "$x"; } $o .= ""; return $o; }} // implements "3 seconds ago" etc. // based on $posted_date, (UTC). // Results relative to current timezone // Limited to range of timestamps if(! function_exists('relative_date')) { function relative_date($posted_date) { $localtime = datetime_convert('UTC',date_default_timezone_get(),$posted_date); $abs = strtotime($localtime); if (is_null($posted_date) || $posted_date === '0000-00-00 00:00:00' || $abs === False) { return t('never'); } $etime = time() - $abs; if ($etime < 1) { return t('less than a second ago'); } $a = array( 12 * 30 * 24 * 60 * 60 => array( t('year'), t('years')), 30 * 24 * 60 * 60 => array( t('month'), t('months')), 7 * 24 * 60 * 60 => array( t('week'), t('weeks')), 24 * 60 * 60 => array( t('day'), t('days')), 60 * 60 => array( t('hour'), t('hours')), 60 => array( t('minute'), t('minutes')), 1 => array( t('second'), t('seconds')) ); foreach ($a as $secs => $str) { $d = $etime / $secs; if ($d >= 1) { $r = round($d); return $r . ' ' . (($r == 1) ? $str[0] : $str[1]) . t(' ago'); } } }} // Returns age in years, given a date of birth, // the timezone of the person whose date of birth is provided, // and the timezone of the person viewing the result. // Why? Bear with me. Let's say I live in Mittagong, Australia, and my // birthday is on New Year's. You live in San Bruno, California. // When exactly are you going to see my age increase? // A: 5:00 AM Dec 31 San Bruno time. That's precisely when I start // celebrating and become a year older. If you wish me happy birthday // on January 1 (San Bruno time), you'll be a day late. function age($dob,$owner_tz = '',$viewer_tz = '') { if(! intval($dob)) return 0; if(! $owner_tz) $owner_tz = date_default_timezone_get(); if(! $viewer_tz) $viewer_tz = date_default_timezone_get(); $birthdate = datetime_convert('UTC',$owner_tz,$dob . ' 00:00:00+00:00','Y-m-d'); list($year,$month,$day) = explode("-",$birthdate); $year_diff = datetime_convert('UTC',$viewer_tz,'now','Y') - $year; $curr_month = datetime_convert('UTC',$viewer_tz,'now','m'); $curr_day = datetime_convert('UTC',$viewer_tz,'now','d'); if(($curr_month < $month) || (($curr_month == $month) && ($curr_day < $day))) $year_diff--; return $year_diff; } // Get days in month // get_dim($year, $month); // returns number of days. // $month[1] = 'January'; // to match human usage. if(! function_exists('get_dim')) { function get_dim($y,$m) { $dim = array( 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); if($m != 2) return $dim[$m]; if(((($y % 4) == 0) && (($y % 100) != 0)) || (($y % 400) == 0)) return 29; return $dim[2]; }} // Returns the first day in month for a given month, year // get_first_dim($year,$month) // returns 0 = Sunday through 6 = Saturday // Months start at 1. if(! function_exists('get_first_dim')) { function get_first_dim($y,$m) { $d = sprintf('%04d-%02d-01 00:00', intval($y), intval($m)); return datetime_convert('UTC','UTC',$d,'w'); }} // output a calendar for the given month, year. // if $links are provided (array), e.g. $links[12] => 'http://mylink' , // date 12 will be linked appropriately. Today's date is also noted by // altering td class. // Months count from 1. // TODO: provide (prev,next) links, define class variations for different size calendars if(! function_exists('cal')) { function cal($y = 0,$m = 0, $links = false, $class='') { // month table - start at 1 to match human usage. $mtab = array(' ', 'January','February','March', 'April','May','June', 'July','August','September', 'October','November','December' ); $thisyear = datetime_convert('UTC',date_default_timezone_get(),'now','Y'); $thismonth = datetime_convert('UTC',date_default_timezone_get(),'now','m'); if(! $y) $y = $thisyear; if(! $m) $m = intval($thismonth); $dn = array('Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'); $f = get_first_dim($y,$m); $l = get_dim($y,$m); $d = 1; $dow = 0; $started = false; if(($y == $thisyear) && ($m == $thismonth)) $tddate = intval(datetime_convert('UTC',date_default_timezone_get(),'now','j')); $str_month = day_translate($mtab[$m]); $o = ''; $o .= ""; for($a = 0; $a < 7; $a ++) $o .= ''; $o .= ''; while($d <= $l) { if(($dow == $f) && (! $started)) $started = true; $today = (((isset($tddate)) && ($tddate == $d)) ? "class=\"today\" " : ''); $o .= "'; $dow ++; if(($dow == 7) && ($d <= $l)) { $dow = 0; $o .= ''; } } if($dow) for($a = $dow; $a < 7; $a ++) $o .= ''; $o .= '

$str_month $y

' . mb_substr(day_translate($dn[$a]),0,3,'UTF-8') . '
"; $day = str_replace(' ',' ',sprintf('%2.2d', $d)); if($started) { if(is_array($links) && isset($links[$d])) $o .= "$day"; else $o .= $day; $d ++; } else $o .= ' '; $o .= '

'."\r\n"; return $o; }}