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time (PHP 3, PHP 4, PHP 5) time -- Возвращает текущую метку времени Описаниеint time ( void )
Возвращает количество секунд, прошедших с начала Эпохи Unix (The Unix
Epoch, 1 января 1970, 00:00:00 GMT) до текущего времени.
См. также описание функций date() и microtime().
stack-phpnotes at landstander dot com
22-Oct-2007 04:31
My modification and enhancements to the timeDiff() function last updated by sean sullivan. The rewrite was done to add a couple new optional parameters but I also got a bump in performance. On a completely personal preference level I changed the month and year second values with ones I got from Google searches.
Written and tested with 5.2.0.
Options include
to = time(); date to compute the range to
parts = 1; number of parts to display max
precision = 'second'; lowest part to compute to
distance = TRUE; include the 'ago' or 'away' bit
separator = ', '; separates the parts
<?php
function timeDiff($time, $opt = array()) {
$defOptions = array(
'to' => 0,
'parts' => 1,
'precision' => 'second',
'distance' => TRUE,
'separator' => ', '
);
$opt = array_merge($defOptions, $opt);
(!$opt['to']) && ($opt['to'] = time());
$str = '';
$diff = ($opt['to'] > $time) ? $opt['to']-$time : $time-$opt['to'];
$periods = array(
'decade' => 315569260,
'year' => 31556926,
'month' => 2629744,
'week' => 604800,
'day' => 86400,
'hour' => 3600,
'minute' => 60,
'second' => 1
);
if ($opt['precision'] != 'second')
$diff = round(($diff/$periods[$opt['precision']])) * $periods[$opt['precision']];
(0 == $diff) && ($str = 'less than 1 '.$opt['precision']);
foreach ($periods as $label => $value) {
(($x=floor($diff/$value))&&$opt['parts']--) && $str.=($str?$opt['separator']:'').($x.' '.$label.($x>1?'s':''));
if ($opt['parts'] == 0 || $label == $opt['precision']) break;
$diff -= $x*$value;
}
$opt['distance'] && $str.=($str&&$opt['to']>$time)?' ago':' away';
return $str;
}
?>
Usage:
$span = timeDiff($when);
or
$span = timeDiff($when, array('parts' => 3));
Josh Abraham
28-Sep-2007 07:43
When dealing with the results of the time function, taking the modulus (remainder) is often a good way to find recurring information such as day of the week, week of the year, or month of the year. In the example given below of a firefighter's shift, you could do the following to simplify the code.
<?php
function whatShift() {
$referencePoint = mktime(7, 0, 0, 9, 11, 2004); $sinceReference = (time() - $referencePoint) % (60 * 60 * 24 * 3);
if ($sinceReference < 60 * 60 * 25) $shift = "A";
elseif ($sinceReference < 60 * 60 * 49) $shift = "B";
else $shift = "C";
return $shift;
}
?>
jon at freilich dot com
21-Sep-2007 09:30
Fire Fighters typically work one day on and two days off. Known as shifts and generally referred to as A, B and C. I need to compute this for a web script so I came up with the following function.
Notes: You may need to change the reference date as not all departments are on the same rotation. Also, this does not take into account daylight savings time so the changeover moves by an hour.
<?php
function whatShift() {
$referencePoint = mktime(7, 0, 0, 9, 11, 2004); $now = time();
$difference = ($now - $referencePoint);
$cycles = floor($difference / (60 * 60 * 24 * 3));
$sinceReference = ($difference - ($cycles * 60 * 60 * 24 * 3));
if ($sinceReference < 60 * 60 * 25) { $shift = "A";
}
elseif ($sinceReference < 60 * 60 * 49) { $shift = "B";
}
else {
$shift = "C"; }
return $shift;
}
?>
kobieta dot ryba at gmail dot com
12-Sep-2007 04:23
Time left function:
<?php
define("TIME_PERIODS_PLURAL_SINGULAR", "weeks:week,years:year,days:day,hours:hour, : ,minutes:minute,seconds:second");
DEFINE("TIME_LEFT_STRING_TPL", " #num# #period#");
function time_left($time)
{
if (($now = time()) <= $time) return false;
$timeRanges = array('years' => 365*60*60*24,'days' => 60*60*24, 'hours' => 60*60, 'minutes' => 60, 'seconds' => 1);
$secondsLeft = $now-$time;
$outRanges = array();
foreach ($timeRanges as $period => $sec)
if ($secondsLeft/$sec >= 1)
{
$outRanges[$period] = floor($secondsLeft/$sec);
$secondsLeft -= ($outRanges[$period] * $sec);
}
$periodsEx = explode(",", TIME_PERIODS_PLURAL_SINGULAR);
$periodsAr = array();
foreach ($periodsEx as $periods)
{
$ex = explode(":", $periods);
$periodsAr[$ex[0]] = array('plural' => $ex[0], 'singular' => $ex[1]);
}
$outString = "";
$outStringAr = array();
foreach ($outRanges as $period => $num)
{
$per = $periodsAr[$period]['plural'];
if ($num == 1) $per = $periodsAr[$period]['singular'];
$outString .= $outStringAr[$period] = str_replace(array("#num#", "#period#"), array($num, $per), TIME_LEFT_STRING_TPL);
}
return array('timeRanges' => $outRanges, 'leftStringAr' => $outStringAr, 'leftString' => $outString);
}
print_r(time_left(time()-60*60*24*365+59));
?>
Output:
Array
(
[timeRanges] => Array
(
[days] => 364
[hours] => 23
[minutes] => 59
[seconds] => 1
)
[leftStringAr] => Array
(
[days] => 364 days
[hours] => 23 hours
[minutes] => 59 minutes
[seconds] => 1 second
)
[leftString] => 364 days 23 hours 59 minutes 1 second
)
by225 at yahoo dot com
06-Sep-2007 12:32
A function for converting to Unix time without using the MySQL UNIX_TIMESTAMP function in a query (MySQL allows eight different formats for timestamps):
function UnixTime($mysql_timestamp){
if (preg_match('/(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})/', $mysql_timestamp, $pieces)
|| preg_match('/(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})/', $mysql_timestamp, $pieces)) {
$unix_time = mktime($pieces[4], $pieces[5], $pieces[6], $pieces[2], $pieces[3], $pieces[1]);
} elseif (preg_match('/\d{4}\-\d{2}\-\d{2} \d{2}:\d{2}:\d{2}/', $mysql_timestamp)
|| preg_match('/\d{2}\-\d{2}\-\d{2} \d{2}:\d{2}:\d{2}/', $mysql_timestamp)
|| preg_match('/\d{4}\-\d{2}\-\d{2}/', $mysql_timestamp)
|| preg_match('/\d{2}\-\d{2}\-\d{2}/', $mysql_timestamp)) {
$unix_time = strtotime($mysql_timestamp);
} elseif (preg_match('/(\d{4})(\d{2})(\d{2})/', $mysql_timestamp, $pieces)
|| preg_match('/(\d{2})(\d{2})(\d{2})/', $mysql_timestamp, $pieces)) {
$unix_time = mktime(0, 0, 0, $pieces[2], $pieces[3], $pieces[1]);
}
return $unix_time;
}
lsd25 at hotmail dot com
01-Sep-2007 07:53
I did an article on floating point time you can download from my website. Roun movements is the radial ounion movement and there is a quantum ounion movement as well, this code will generate the data for http://www.chronolabs.org.au/bin/roun-time-article.pdf which is an article on floating point time, I have created the calendar system as well for this time. It is compatible with other time and other solar systems with different revolutions of the planets as well as different quantumy stuff.
Thanks:
<?
if ($gmt>0){
$gmt=-$gmt;
} else {
$gmt=$gmt+$gmt+$gmt;
}
$ptime = strtotime('2008-05-11 10:05 AM')+(60*60*gmt);
$weight = -20.22222222223+(1*gmt);
$roun_xa = ($tme)/(24*60*60);
$roun_ya = $ptime/(24*60*60);
$roun = (($roun_xa -$roun_ya) - $weight)+(microtime/999999);
$nonedeficient = array("seq1" => array(31,30,31,30,30,30,31,30,31,30,31,30),
"seq2" => array(31,30,31,30,31,30,31,30,31,30,31,30),
"seq3" => array(31,30,31,30,30,30,31,30,31,30,31,30),
"seq4" => array(31,30,31,30,30,30,31,30,31,30,31,30));
$deficient = array("seq1" => array(31,30,31,30,30,30,31,30,31,30,31,30),
"seq2" => array(31,30,31,30,31,30,31,30,31,30,31,30),
"seq3" => array(31,30,31,30,31,30,31,30,30,30,31,30),
"seq4" => array(30,30,31,30,31,30,31,30,31,30,31,30));
$monthusage = isset($_GET['deficienty']) ? ${$_GET['deficienty']} : $deficient;
foreach($monthusage as $key => $item){
$i++;
foreach($item as $numdays){
$ttl_num=$ttl_num+$numdays;
}
}
$revolutionsperyear = $ttl_num / $i;
$numyears = round((round(ceil($roun)) / $revolutionsperyear),0);
$jtl = abs(abs($roun) - ceil($revolutionsperyear*($numyears+1)));
while($month==0){
$day=0;
foreach($monthusage as $key => $item){
$t++;
$u=0;
foreach($item as $numdays){
if ($ii<abs($roun)){
$isbelow=true;
}
$ii=$ii+$numdays;
if ($ii>abs($roun)){
$isabove=true;
}
if ($isbelow==true&&$isabove==true){
$daynum = floor(($ii-$numday)-abs($roun));
$month = $u;
$month++;
$isbelow=false;
$isabove=false;
$nodaycount=true;
}
if ($nodaycount==false)
$day++;
$u++;
}
}
}
$timer = substr($roun, strpos($roun,'.')+1,strlen($roun)-strpos($roun,'.')-1);
$roun_out= $numyears.'-'.$month.'-'.$daynum.' '.$day.".$timer";
?>
Sean Sullivan
28-Jul-2007 12:51
Fixed divide by zero warnings given by the timeDiff function. The change is that the for loop doesn't count down to 0 anymore, just 1. I dont think it has any side effects.
# max_detail_levels - how deep to go down? If max_detail_levels is set to 2, text will output something like "3 days 4 hours" instead of "3 days 4 hours 10 minutes 55 seconds"
# precision_level - this is what rspenc29 was trying to accomplish. If you want to only report a minimum value of say 1 hour, then you should set this to "hour"
function timeDiff($timestamp,$detailed=false, $max_detail_levels=8, $precision_level='second'){
$now = time();
#If the difference is positive "ago" - negative "away"
($timestamp >= $now) ? $action = 'away' : $action = 'ago';
# Set the periods of time
$periods = array("second", "minute", "hour", "day", "week", "month", "year", "decade");
$lengths = array(1, 60, 3600, 86400, 604800, 2630880, 31570560, 315705600);
$diff = ($action == 'away' ? $timestamp - $now : $now - $timestamp);
$prec_key = array_search($precision_level,$periods);
# round diff to the precision_level
$diff = round(($diff/$lengths[$prec_key]))*$lengths[$prec_key];
# if the diff is very small, display for ex "just seconds ago"
if ($diff <= 10) {
$periodago = max(0,$prec_key-1);
$agotxt = $periods[$periodago].'s';
return "just $agotxt $action";
}
# Go from decades backwards to seconds
$time = "";
for ($i = (sizeof($lengths) - 1); $i>0; $i--) {
if($diff > $lengths[$i-1] && ($max_detail_levels > 0)) { # if the difference is greater than the length we are checking... continue
$val = floor($diff / $lengths[$i-1]); # 65 / 60 = 1. That means one minute. 130 / 60 = 2. Two minutes.. etc
$time .= $val ." ". $periods[$i-1].($val > 1 ? 's ' : ' '); # The value, then the name associated, then add 's' if plural
$diff -= ($val * $lengths[$i-1]); # subtract the values we just used from the overall diff so we can find the rest of the information
if(!$detailed) { $i = 0; } # if detailed is turn off (default) only show the first set found, else show all information
$max_detail_levels--;
}
}
# Basic error checking.
if($time == "") {
return "Error-- Unable to calculate time.";
} else {
return $time.$action;
}
}
nimit dot maru at dontspam-gmail dot com
19-Jul-2007 01:56
Correcting some problems with rspenc29's addition, and adding another feature:
# max_detail_levels - how deep to go down? If max_detail_levels is set to 2, text will output something like "3 days 4 hours" instead of "3 days 4 hours 10 minutes 55 seconds"
# precision_level - this is what rspenc29 was trying to accomplish. If you want to only report a minimum value of say 1 hour, then you should set this to "hour"
function timeDiff($timestamp,$detailed=false, $max_detail_levels=8, $precision_level='second'){
$now = time();
#If the difference is positive "ago" - negative "away"
($timestamp >= $now) ? $action = 'away' : $action = 'ago';
# Set the periods of time
$periods = array("second", "minute", "hour", "day", "week", "month", "year", "decade");
$lengths = array(1, 60, 3600, 86400, 604800, 2630880, 31570560, 315705600);
$diff = ($action == 'away' ? $timestamp - $now : $now - $timestamp);
$prec_key = array_search($precision_level,$periods);
# round diff to the precision_level
$diff = round(($diff/$lengths[$prec_key]))*$lengths[$prec_key];
# if the diff is very small, display for ex "just seconds ago"
if ($diff <= 10) {
$periodago = max(0,$prec_key-1);
$agotxt = $periods[$periodago].'s';
return "just $agotxt $action";
}
# Go from decades backwards to seconds
$time = "";
for ($i = (sizeof($lengths) - 1); $i>=0; $i--) {
if($diff > $lengths[$i-1] && ($max_detail_levels > 0)) { # if the difference is greater than the length we are checking... continue
$val = floor($diff / $lengths[$i-1]); # 65 / 60 = 1. That means one minute. 130 / 60 = 2. Two minutes.. etc
$time .= $val ." ". $periods[$i-1].($val > 1 ? 's ' : ' '); # The value, then the name associated, then add 's' if plural
$diff -= ($val * $lengths[$i-1]); # subtract the values we just used from the overall diff so we can find the rest of the information
if(!$detailed) { $i = 0; } # if detailed is turn off (default) only show the first set found, else show all information
$max_detail_levels--;
}
}
# Basic error checking.
if($time == "") {
return "Error-- Unable to calculate time.";
} else {
return $time.$action;
}
}
rspenc29 at gmail dot com
13-Jun-2007 06:33
To further expand on shdowhawk's timeDiff function I added a small but important feature
function timeDiff($timestamp,$detailed=false,$n = 0){
$now = time();
#If the difference is positive "ago" - negative "away"
($timestamp >= $now) ? $action = 'away' : $action = 'ago';
$diff = ($action == 'away' ? $timestamp - $now : $now - $timestamp);
# Set the periods of time
$periods = array("second", "minute", "hour", "day", "week", "month", "year", "decade");
$lengths = array(1, 60, 3600, 86400, 604800, 2630880, 31570560, 315705600);
# Go from decades backwards to seconds
$i = sizeof($lengths) - 1; # Size of the lengths / periods in case you change them
$time = ""; # The string we will hold our times in
while($i >= $n) {
if($diff > $lengths[$i-1]) { # if the difference is greater than the length we are checking... continue
$val = floor($diff / $lengths[$i-1]); # 65 / 60 = 1. That means one minute. 130 / 60 = 2. Two minutes.. etc
$time .= $val ." ". $periods[$i-1].($val > 1 ? 's ' : ' '); # The value, then the name associated, then add 's' if plural
$diff -= ($val * $lengths[$i-1]); # subtract the values we just used from the overall diff so we can find the rest of the information
if(!$detailed) { $i = 0; } # if detailed is turn off (default) only show the first set found, else show all information
}
$i--;
}
# Basic error checking.
if($time == "") {
return "Error-- Unable to calculate time.";
} else {
return $time.$action;
}
}
Now you can specify where you want to stop. Example
timeDiff($yourtimestamp,1,4); //Stops after days (no hours, minutes, seconds)
timeDiff($yourtimestamp,1,5); //Stops after hours
sunjith
07-Jun-2007 07:57
In ron's script, the while loop condition should be ($i >0). Otherwise, the index $lengths goes to -1 which will show an error.
ron at sdcausa dot org
01-Jun-2007 01:26
Improvement on top of shdowhawk at gmail dot com:
1. Calculate the time difference (from start to end)
2. Time can be provided as formatted (e.g. 2005-04-02 12:11:10) or integer (12233455).
3. Provide a short display, e.g. 12h 3m 23s
if (!function_exists('timeDiff')){
function timeDiff($starttime, $endtime, $detailed=false, $short = true){
if(! is_int($starttime)) $starttime = strtotime($starttime);
if(! is_int($endtime)) $endtime = strtotime($endtime);
$diff = ($starttime >= $endtime ? $starttime - $endtime : $endtime - $starttime);
# Set the periods of time
$periods = array("second", "minute", "hour", "day", "week", "month", "year", "decade");
$lengths = array(1, 60, 3600, 86400, 604800, 2630880, 31570560, 315705600);
if($short){
$periods = array("s", "m", "h", "d", "m", "y");
$lengths = array(1, 60, 3600, 86400, 2630880, 31570560);
}
# Go from decades backwards to seconds
$i = sizeof($lengths) - 1; # Size of the lengths / periods in case you change them
$time = ""; # The string we will hold our times in
while($i >= 0) {
if($diff > $lengths[$i-1]) { # if the difference is greater than the length we are checking... continue
$val = floor($diff / $lengths[$i-1]); # 65 / 60 = 1. That means one minute. 130 / 60 = 2. Two minutes.. etc
$time .= $val . ($short ? '' : ' ') . $periods[$i-1] . ((!$short && $val > 1) ? 's ' : ' '); # The value, then the name associated, then add 's' if plural
$diff -= ($val * $lengths[$i-1]); # subtract the values we just used from the overall diff so we can find the rest of the information
if(!$detailed) { $i = 0; } # if detailed is turn off (default) only show the first set found, else show all information
}
$i--;
}
return $time;
}
}
shdowhawk at gmail dot com
18-May-2007 06:40
I modified the timeDiff scripts from what other people just wrote. I added my little twist onto it =)
Basically... now you can add in a detailed option. By default it is turned off, so we get the .. 1 hour ago .. or .. 2 weeks away.
By calling timeDiff($timestamp,1) ... or timeDiff($timeStamp,true) .. we can now get a detailed count down. Ex: 1 hour 7 minutes 47 seconds ago
function timeDiff($timestamp,$detailed=false){
$now = time();
#If the difference is positive "ago" - negative "away"
($timestamp >= $now) ? $action = 'away' : $action = 'ago';
$diff = ($action == 'away' ? $timestamp - $now : $now - $timestamp);
# Set the periods of time
$periods = array("second", "minute", "hour", "day", "week", "month", "year", "decade");
$lengths = array(1, 60, 3600, 86400, 604800, 2630880, 31570560, 315705600);
# Go from decades backwards to seconds
$i = sizeof($lengths) - 1; # Size of the lengths / periods in case you change them
$time = ""; # The string we will hold our times in
while($i >= 0) {
if($diff > $lengths[$i-1]) { # if the difference is greater than the length we are checking... continue
$val = floor($diff / $lengths[$i-1]); # 65 / 60 = 1. That means one minute. 130 / 60 = 2. Two minutes.. etc
$time .= $val ." ". $periods[$i-1].($val > 1 ? 's ' : ' '); # The value, then the name associated, then add 's' if plural
$diff -= ($val * $lengths[$i-1]); # subtract the values we just used from the overall diff so we can find the rest of the information
if(!$detailed) { $i = 0; } # if detailed is turn off (default) only show the first set found, else show all information
}
$i--;
}
# Basic error checking.
if($time == "") {
return "Error-- Unable to calculate time.";
} else {
return $time.$action;
}
}
joncampell at gmail dot com
08-May-2007 01:07
Time difference both forward and backward, based on tristan's TimeAgo() function :)
function timeDiff($timestamp){
$now = time();
//If the difference is positive "ago" - negative "away"
($timestamp >= $now) ? $action = 'away' : $action = 'ago';
switch($action) {
case 'away':
$diff = $timestamp - $now;
break;
case 'ago':
default:
// Determine the difference, between the time now and the timestamp
$diff = $now - $timestamp;
break;
}
// Set the periods of time
$periods = array("second", "minute", "hour", "day", "week", "month", "year", "decade");
// Set the number of seconds per period
$lengths = array(1, 60, 3600, 86400, 604800, 2630880, 31570560, 315705600);
// Go from decades backwards to seconds
for ($val = sizeof($lengths) - 1; ($val >= 0) && (($number = $diff / $lengths[$val]) <= 1); $val--);
// Ensure the script has found a match
if ($val < 0) $val = 0;
// Determine the minor value, to recurse through
$new_time = $now - ($diff % $lengths[$val]);
// Set the current value to be floored
$number = floor($number);
// If required create a plural
if($number != 1) $periods[$val].= "s";
// Return text
$text = sprintf("%d %s ", $number, $periods[$val]);
return $text . $action;
}
If anyone knows of an easier way to do this, please comment.
jason at thinkingman dot org
26-Apr-2007 09:58
Here you go. You can specify how much you wanna see -- years, weeks, days, hours, minutes or seconds. Returns an Array containing a String along with the individual time values.
Usage:
array calc_tl( int $unixTime, [int $unixTime], [char $selector] )
<?php
function calc_tl($t, $sT = 0, $sel = 'Y') {
$sY = 31536000;
$sW = 604800;
$sD = 86400;
$sH = 3600;
$sM = 60;
if($sT) {
$t = ($sT - $t);
}
if($t <= 0) {
$t = 0;
}
$bs[1] = ('1'^'9'); switch(strtolower($sel)) {
case 'y':
$y = ((int)($t / $sY));
$t = ($t - ($y * $sY));
$r['string'] .= "{$y} years{$bs[$y]} ";
$r['years'] = $y;
case 'w':
$w = ((int)($t / $sW));
$t = ($t - ($w * $sW));
$r['string'] .= "{$w} weeks{$bs[$w]} ";
$r['weeks'] = $w;
case 'd':
$d = ((int)($t / $sD));
$t = ($t - ($d * $sD));
$r['string'] .= "{$d} days{$bs[$d]} ";
$r['days'] = $d;
case 'h':
$h = ((int)($t / $sH));
$t = ($t - ($h * $sH));
$r['string'] .= "{$h} hours{$bs[$h]} ";
$r['hours'] = $h;
case 'm':
$m = ((int)($t / $sM));
$t = ($t - ($m * $sM));
$r['string'] .= "{$m} minutes{$bs[$m]} ";
$r['minutes'] = $m;
case 's':
$s = $t;
$r['string'] .= "{$s} seconds{$bs[$s]} ";
$r['seconds'] = $s;
break;
default:
return calc_tl($t);
break;
}
return $r;
}
$startTime = time();
$stopTime = mktime(23,59,59,12,31,2011);
$tY = calc_tl($startTime, $stopTime, 'Y'); $tD = calc_tl($startTime, $stopTime, 'D'); $tH = calc_tl($startTime, $stopTime, 'H'); print_r($tY);
print_r($tD);
print_r($tH);
?>
OUTPUT
Array
(
[string] => 4 years 35 weeks 6 days 4 hours 54 minutes 33 seconds
[years] => 4
[weeks] => 35
[days] => 6
[hours] => 4
[minutes] => 54
[seconds] => 33
)
Array
(
[string] => 1711 days 4 hours 54 minutes 33 seconds
[days] => 1711
[hours] => 4
[minutes] => 54
[seconds] => 33
)
Array
(
[string] => 41068 hours 54 minutes 33 seconds
[hours] => 41068
[minutes] => 54
[seconds] => 33
)
webmaster[at]auscoder[dot]com
25-Apr-2007 07:36
In a recent object I had to calculate the time difference between timestamps in a string format, so I wrote this nice little function I'd like to share.
<?php
define('INT_SECOND', 1);
define('INT_MINUTE', 60);
define('INT_HOUR', 3600);
define('INT_DAY', 86400);
define('INT_WEEK', 604800);
function get_formatted_timediff($then, $now = false)
{
$now = (!$now) ? time() : $now;
$timediff = ($now - $then);
$weeks = (int) intval($timediff / INT_WEEK);
$timediff = (int) intval($timediff - (INT_WEEK * $weeks));
$days = (int) intval($timediff / INT_DAY);
$timediff = (int) intval($timediff - (INT_DAY * $days));
$hours = (int) intval($timediff / INT_HOUR);
$timediff = (int) intval($timediff - (INT_HOUR * $hours));
$mins = (int) intval($timediff / INT_MINUTE);
$timediff = (int) intval($timediff - (INT_MINUTE * $mins));
$sec = (int) intval($timediff / INT_SECOND);
$timediff = (int) intval($timediff - ($sec * INT_SECOND));
$str = '';
if ( $weeks )
{
$str .= intval($weeks);
$str .= ($weeks > 1) ? ' weeks' : ' week';
}
if ( $days )
{
$str .= ($str) ? ', ' : '';
$str .= intval($days);
$str .= ($days > 1) ? ' days' : ' day';
}
if ( $hours )
{
$str .= ($str) ? ', ' : '';
$str .= intval($hours);
$str .= ($hours > 1) ? ' hours' : ' hour';
}
if ( $mins )
{
$str .= ($str) ? ', ' : '';
$str .= intval($mins);
$str .= ($mins > 1) ? ' minutes' : ' minute';
}
if ( $sec )
{
$str .= ($str) ? ', ' : '';
$str .= intval($sec);
$str .= ($sec > 1) ? ' seconds' : ' second';
}
if ( !$weeks && !$days && !$hours && !$mins && !$sec )
{
$str .= '0 seconds ago';
}
else
{
$str .= ' ago';
}
return $str;
}
?>
greg at mix.lycos.com
24-Apr-2007 12:46
I found Craig's code useful, but wanted the ability to limit the granularity to only show most significant time periods. there's the bit i adapted:
<?
function ago ( $epoch, $max_phrases=null ) {
$duration = time() - $epoch;
return seconds2human( $duration > 0 ? $duration : 0,
$max_phrases) . " ago";
}
function seconds2human($epoch, $max_phrases=null ){
// kindly adapted from Craig Francis at http://www.php.net/manual/en/function.time.php#74652
//--------------------------------------------------
// Maths
$sec = $epoch % 60;
$epoch -= $sec;
$minSeconds = $epoch % 3600;
$epoch -= $minSeconds;
$min = ($minSeconds / 60);
$hourSeconds = $epoch % 86400;
$epoch -= $hourSeconds;
$hour = ($hourSeconds / 3600);
$daySeconds = $epoch % 604800;
$epoch -= $daySeconds;
$day = ($daySeconds / 86400);
$week = ($epoch / 604800);
//--------------------------------------------------
// Text
$output = array();
if ($week > 0) {
$output[] = $week . ' week' . ($week != 1 ? 's' : '');
}
if ($day > 0) {
$output[] = $day . ' day' . ($day != 1 ? 's' : '');
}
if ($hour > 0) {
$output[] = $hour . ' hour' . ($hour != 1 ? 's' : '');
}
if ($min > 0) {
$output[] = $min . ' minute' . ($min != 1 ? 's' : '');
}
if ($sec > 0 || $output == '') {
$output[] = $sec . ' second' . ($sec != 1 ? 's' : '');
}
//--------------------------------------------------
// Grammar
if( isset($max_phrases) )
$output = array_slice($output, 0, $max_phrases);
$return = join( ', ', $output);
$return = preg_replace('/, ([^,]+)$/', ' and $1', $return);
//--------------------------------------------------
// Return the output
return $return;
}
?>
john at motdidr dot com
12-Mar-2007 04:01
did a quick test comparing time() with date("U"), using 100,000 iterations. Granted, I did this on a 2.4GHz Celeron... the results should still stand.
time() (100000) : 0.0589900016785
date("U") (100000) : 22.246557951
jh2000 at root24 dot eu
25-Feb-2007 12:08
Just a small notice:
use the time() function instead of date("U"), it is much faster (about 1000 times~)
tristan at trinicle dot net
23-Nov-2006 02:10
Initially I was using Andrew's function to convert a timestamp into a formatted age. It has issues with times greater than a day (div by 0). I also added recursion to produce a result similar to "2 decades 6 months 3 weeks 2 days 6 hours 56 minutes 52 seconds" when input a timestamp from 1986. Hopefully someone will find this useful.
<?php
public static function TimeAgo($timestamp){
$current_time = time();
$difference = $current_time - $timestamp;
$periods = array("second", "minute", "hour", "day", "week", "month", "year", "decade");
$lengths = array(1, 60, 3600, 86400, 604800, 2630880, 31570560, 315705600);
for ($val = sizeof($lengths) - 1; ($val >= 0) && (($number = $difference / $lengths[$val]) <= 1); $val--);
if ($val < 0) $val = 0;
$new_time = $current_time - ($difference % $lengths[$val]);
$number = floor($number);
if($number != 1) $periods[$val].= "s";
$text = sprintf("%d %s ", $number, $periods[$val]);
if (($val >= 1) && (($current_time - $new_time) > 0)){
$text .= self::TimeAgo($new_time);
}
return $text;
}
?>
andrew dot macrobert at gmail dot com
29-Oct-2006 02:33
An improved version of my previous function:
<?
function ago($timestamp){
$difference = time() - $timestamp;
$periods = array("second", "minute", "hour", "day", "week", "month", "years", "decade");
$lengths = array("60","60","24","7","4.35","12","10");
for($j = 0; $difference >= $lengths[$j]; $j++)
$difference /= $lengths[$j];
$difference = round($difference);
if($difference != 1) $periods[$j].= "s";
$text = "$difference $periods[$j] ago";
return $text;
}
?>
andrew dot macrobert at gmail dot com
22-Oct-2006 11:47
This function takes a timestamp and returns how long ago it was, in seconds, minutes, hours, days, or weeks (it will return it in minutes if it was >= than 60 seconds ago, hours if it was >= 60 minutes, etc.).
<?php
function ago($timestamp){
$difference = time() - $timestamp;
if($difference < 60)
return $difference." seconds ago";
else{
$difference = round($difference / 60);
if($difference < 60)
return $difference." minutes ago";
else{
$difference = round($difference / 60);
if($difference < 24)
return $difference." hours ago";
else{
$difference = round($difference / 24);
if($difference < 7)
return $difference." days ago";
else{
$difference = round($difference / 7);
return $difference." weeks ago";
}
}
}
}
}
?>
krisdover at hotmail dot com
08-Sep-2006 09:54
# a simple html/php formatted calendar which returns
# the date as a unix timestamp when the required day
# is selected. Also allows for setting of time in 24hr format
# kris dover, 2006-09-09
<?php
$sel_date = isset($_REQUEST['sel_date']) ? $_REQUEST['sel_date'] : time();
if( isset($_POST['hrs']) ){
$t = getdate($sel_date);
$sel_date = mktime($_POST['hrs'], $_POST['mins'], $t['seconds'], $t['mon'], $t['mday'], $t['year']);
}
$t = getdate($sel_date);
$start_date = mktime($t['hours'], $t['minutes'], $t['seconds'], $t['mon'], 1, $t['year']);
$start_date -= 86400 * date('w', $start_date);
$prev_year = mktime($t['hours'], $t['minutes'], $t['seconds'], $t['mon'], $t['mday'], $t['year'] - 1);
$prev_month = mktime($t['hours'], $t['minutes'], $t['seconds'], $t['mon'] - 1, $t['mday'], $t['year']);
$next_year = mktime($t['hours'], $t['minutes'], $t['seconds'], $t['mon'], $t['mday'], $t['year'] + 1);
$next_month = mktime($t['hours'], $t['minutes'], $t['seconds'], $t['mon'] + 1, $t['mday'], $t['year']);
?>
<form method="post">
<table width="180" border="0" cellspacing="1"
style="border: 1px solid black; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: x-small; text-align: center">
<tr>
<td width="14%" bgcolor="#66FF99">
<a href="?sel_date=<?= $prev_year ?>" style="text-decoration: none" title="Prevous Year"><<</a></td>
<td width="14%" bgcolor="#66FF99">
<a href="?sel_date=<?= $prev_month ?>" style="text-decoration: none" title="Prevous Month"><</a></td>
<td colspan="3" bgcolor="#66FF99">
<?= date('M Y', $sel_date) ?>
</td>
<td width="14%" bgcolor="#66FF99">
<a href="?sel_date=<?= $next_month ?>" style="text-decoration: none" title="Next Month">></a></td>
<td width="14%" bgcolor="#66FF99">
<a href="?sel_date=<?= $next_year ?>" style="text-decoration: none" title="Next Year">>></a></td>
</tr>
<tr>
<td bgcolor="#0099FF">Sun</td>
<td bgcolor="#0099FF">Mon</td>
<td width="14%" bgcolor="#0099FF">Tue</td>
<td width="14%" bgcolor="#0099FF">Wed</td>
<td width="14%" bgcolor="#0099FF">Thu</td>
<td bgcolor="#0099FF">Fri</td>
<td bgcolor="#0099FF">Sat</td>
</tr>
<?php
$day = 1;
for($i = $start_date; $day <= 42; $i+=86400, $day++){
if( $day % 7 == 1 ) echo "<tr>\n";
if( $t['mon'] == date('n', $i ) )
if( $i == $sel_date )
echo ' <td bgcolor="gold">'. date('j', $i) ."</td>\n";
else
echo ' <td><a href="?sel_date='. $i .'" style="text-decoration: none">'. date('j', $i) ."</a></td>\n";
else
echo ' <td ><a href="?sel_date='. $i .'" style="text-decoration: none"><font color="silver">'. date('j', $i) ."</font></a></td>\n";
if( $day % 7 == 0 ) echo "</tr>\n";
}
?>
<tr>
<td colspan="7" align="left" bgcolor="silver">Time:
<select name="hrs" onchange="document.forms[0].submit()">
<?php
for($i = 0; $i < 24; $i++)
echo ' <option '. (date('G', $sel_date)==$i ? 'selected':'') .'>'. sprintf('%02d', $i) ."</option>\n";
?>
</select>:
<select name="mins" onchange="document.forms[0].submit()">
<?php
for($i = 0; $i < 60; $i++)
echo ' <option '. (date('i', $sel_date)==$i ? 'selected':'') .'>'. sprintf('%02d', $i) ."</option>\n";
?>
</select> hrs
<input type="hidden" name="sel_date" value="<?= $sel_date ?>">
</td>
</tr>
</table>
</form>
STaRDoGGCHaMP
21-Jul-2006 11:34
This function formate a timestamp into days, hours, minutes and seconds.
e.g the time until your birthday.
<?php
function formatetimestamp($until){
$now = time();
$difference = $until - $now;
$days = floor($difference/86400);
$difference = $difference - ($days*86400);
$hours = floor($difference/3600);
$difference = $difference - ($hours*3600);
$minutes = floor($difference/60);
$difference = $difference - ($minutes*60);
$seconds = $difference;
$output = "You have to wait $days Days, $hours Hours, $minutes Minutes and $seconds Seconds until this Day.";
return $output;
}
echo formatetimestamp(mktime(0,0,0,12,31,2006)); ?>
send at mail dot 2aj dot net
08-Jun-2006 11:58
If you want to create a "rounded" time stamp, for example, to the nearest 15 minutes use this as a reference:
<?php
$round_numerator = 60 * 15 $rounded_time = ( round ( time() / $round_numerator ) * $round_numerator );
?>
info at exitorange dot com
21-Feb-2006 08:11
in order to get the timestamp of the beginning of the current day (useful for synchronising) just do this:
$time = time();
$start_time = mktime(0, 0, 0, date('m', $time),date('d', $time),date('Y', $time));
emory dot smith at gmail dot com
19-Feb-2006 04:17
heres another way to convert a mysql timestamp to a unix timestamp without using the function UNIX_TIMESTAMP in mysql:
<?php
$unix_timestamp = strtotime($mysql_timestamp);
?>
mayank_arya at hotmail dot com
28-May-2003 06:13
Here's one way to generate all intermediate dates (in mySQL format) between any 2 dates.
Get start and end dates from user input, you'd need to do the basic validations that :
- start and end dates are valid dates
- start date <= end date.
<?php
$sm=2;
$sd=23;
$sy=2001;
$em=3;
$ed=14;
$ey=2001;
$s=mktime(0,0,0,$sm, $sd, $sy);
$e=mktime(0,0,0,$em, $ed, $ey);
while($s<=$e){
print date('Y-m-d',$s)."< br >"; $s=$s+86400; }
Hope this helps :)
?>
paul at honeylocust dot com
13-Jun-2002 12:56
Be careful about using the database clock (say UNIX_TIMESTAMP() in MySQL) and the time() function if you're writing an application that may have the database be on a different machine than the web server. In that situation, applications can break because of clock skew -- use a single authority for timestamps if possible.
matt at blockdev dot net
22-Sep-2001 07:04
Lots of MySQL traffic, little PostgreSQL. PG hasn't UNIX_TIMESTAMP()- instead, use:
extract(epoch from ____)
As in:
SELECT extract(epoch from mytimestamp) FROM mytable WHERE mycondition = true;
08-Sep-2000 12:42
To convert a MySQL timestamp to a Unix-style timestamp, use MySQL's UNIX_TIMESTAMP function.
For Example:
$result=mysql_query ("SELECT UNIX_TIMESTAMP(timestamp_column) as epoch_time FROM table");
$unix_timestamp = mysql_result ($result, 0, 0);
|
strtotime
