6 * Copyright (c) 1999-2003 The SquirrelMail Project Team
7 * Licensed under the GNU GPL. For full terms see the file COPYING.
9 * Takes a date and parses it into a usable format. The form that a
10 * date SHOULD arrive in is:
11 * <Tue,> 29 Jun 1999 09:52:11 -0500 (EDT)
12 * (as specified in RFC 822) -- 'Tue' is optional
17 require_once(SM_PATH
. 'functions/constants.php');
19 /* corrects a time stamp to be the local time */
20 function getGMTSeconds($stamp, $tzc) {
21 /* date couldn't be parsed */
25 /* timezone correction, expressed as `shhmm' */
73 if (substr($tzc, 0, 1) == '-') {
75 } else if (substr($tzc, 0, 1) != '+') {
78 $hh = substr($tzc,1,2);
79 $mm = substr($tzc,3,2);
80 $iTzc = ($hh * 60 +
$mm) * 60;
81 if ($neg) $iTzc = -1 * (int) $iTzc;
84 /** now find what the server is at **/
85 $current = date('Z', time());
86 /* stamp in local timezone */
93 Switch system has been intentionaly chosen for the
94 internationalization of month and day names. The reason
95 is to make sure that _("") strings will go into the
99 function getDayName( $day_number ) {
101 switch( $day_number ) {
112 $ret = _("Wednesday");
115 $ret = _("Thursday");
121 $ret = _("Saturday");
129 function getDayAbrv( $day_number ) {
131 switch( $day_number ) {
159 function getMonthName( $month_number ) {
160 switch( $month_number ) {
165 $ret = _("February");
186 $ret = _("September");
192 $ret = _("November");
195 $ret = _("December");
203 function getMonthAbrv( $month_number ) {
204 switch( $month_number ) {
218 $ret = _("May");
248 function date_intl( $date_format, $stamp ) {
249 $ret = str_replace( array('D','F','l','M'), array('$1','$2','$3','$4'), $date_format );
250 $ret = date('w#m#'. $ret, $stamp ); // to reduce the date calls we retrieve m and w in the same call
251 $aParts = explode('#',$ret); // extract day and month in order to replace later by intl day and month
252 $ret = str_replace(array('$1','$4','$2','$3',), array(getDayAbrv($aParts[0]),
253 getMonthAbrv($aParts[1]),
254 getMonthName($aParts[1]),
255 getDayName($aParts[0])),
260 function getLongDateString( $stamp ) {
268 if ( $hour_format == SMPREF_TIME_12HR
) {
269 $date_format = _("D, F j, Y g:i a");
271 $date_format = _("D, F j, Y G:i");
274 return( date_intl( $date_format, $stamp ) );
278 function getDateString( $stamp ) {
280 global $invert_time, $hour_format, $show_full_date;
282 if ( $stamp == -1 ) {
288 $dateZ = date('Z', $now );
292 $midnight = $now - ($now %
86400) - $dateZ;
293 $nextmid = $midnight +
86400;
295 if (($show_full_date == 1) ||
($nextmid < $stamp)) {
296 $date_format = _("M j, Y");
297 } else if ($midnight < $stamp) {
299 if ( $hour_format == SMPREF_TIME_12HR
) {
300 $date_format = _("g:i a");
302 $date_format = _("G:i");
304 } else if ($midnight - 518400 < $stamp) {
306 if ( $hour_format == SMPREF_TIME_12HR
) {
307 $date_format = _("D, g:i a");
309 $date_format = _("D, G:i");
312 /* before this week */
313 $date_format = _("M j, Y");
316 return( date_intl( $date_format, $stamp ) );
319 function getTimeStamp($dateParts) {
320 /** $dateParts[0] == <day of week> Mon, Tue, Wed
321 ** $dateParts[1] == <day of month> 23
322 ** $dateParts[2] == <month> Jan, Feb, Mar
323 ** $dateParts[3] == <year> 1999
324 ** $dateParts[4] == <time> 18:54:23 (HH:MM:SS)
325 ** $dateParts[5] == <from GMT> +0100
326 ** $dateParts[6] == <zone> (EDT)
328 ** NOTE: In RFC 822, it states that <day of week> is optional.
329 ** In that case, dateParts[0] would be the <day of month>
330 ** and everything would be bumped up one.
334 * Simply check to see if the first element in the dateParts
335 * array is an integer or not.
336 * Since the day of week is optional, this check is needed.
338 if (count($dateParts) <2) {
342 /* remove day of week */
343 if (!is_numeric(trim($dateParts[0]))) {
344 $dataParts = array_shift($dateParts);
346 /* calculate timestamp separated from the zone and obs-zone */
347 $stamp = strtotime(implode (' ', array_splice ($dateParts,0,4)));
348 if (!isset($dateParts[0])) {
349 $dateParts[0] = '+0000';
352 if (!preg_match('/^[+-]{1}[0-9]{4}$/',$dateParts[0])) {
353 /* zone in obs-zone format */
354 if (preg_match('/\((.+)\)/',$dateParts[0],$regs)) {
355 $obs_zone = $regs[1];
357 $obs_zone = $dateParts[0];
359 return getGMTSeconds($stamp, $obs_zone);
361 return getGMTSeconds($stamp, $dateParts[0]);
365 /* I use this function for profiling. Should never be called in
366 actual versions of squirrelmail released to public. */
368 function getmicrotime() {
369 $mtime = microtime();
370 $mtime = explode(' ',$mtime);
371 $mtime = $mtime[1] + $mtime[0];