Change days to hours with date_diff - php

$time = Whatever i want
$future_date = new DateTime(date('r',strtotime($time)));
$time_now = time();
$now = new DateTime(date('r', $time_now));
interval = date_diff($future_date, $now);
echo $interval->format('%H:%I');
When i run this... i get an output WITH days, you just cant see them. How can i roll the days into the hours (like to have 35 hours for example)?
This is part of a longer script im writing, im aware there are different ways of doing this....
EDIT
Using the answers below, i've come up with this:
$time = '2013-10-8 11:10:00';
$future_date = new DateTime($time);
$now = new DateTime();
$interval = date_diff($future_date, $now);
$text = $interval->days * 24 + $interval->h . ':' . $interval->i;
I'm trying to output the hours and minutes in this format (00:00), WITH leading zeros. Now out of my depth...

Example how to get difference between dates/timestamps in hours:
$future = new DateTime('#1383609600');
$now = new DateTime;
$diff = $now->diff($future);
echo $diff->days * 24 + $diff->h;
Update: if you wish to format output numbers with leading zeros, you can use sprintf() or str_pad() function. Example of sprintf() use:
echo sprintf('%02d:%02d', $diff->days * 24 + $diff->h, $diff->i);

Related

How to sum hours with existing datetime in PHP?

I have two fields which store data like 2018-03-26 11:20:35 and 02:25:10(2 hours 25 minutes and 10 seconds) first data is date and time. second one is only time. I want to sum it and finally my result should 2018-03-26 13:45:45
How to do that in php code?
I have tried this way:
<?php
$date = '2018-03-26 11:20:35';
//echo $date;
//echo "<br>";
$hours = '02:25:10'; /* this data dynamic */
$sumTime = strtotime($date) + strtotime($hours);
$new_time = date("Y-m-d H:i:s", $sumTime);
echo $new_time;
Output:
Warning: date() expects parameter 2 to be integer, float given in C:\my-project-path\test.php on line 7
Here's a simple solution, some checks are skipped:
// convert your date to DateTime object
$date = '2018-03-26 11:20:35';
$dt = new DateTime($date);
// convert your period to DateInterval
$hours = '02:25:10'; /* this data dynamic */
$parts = explode(':', $hours);
$interval = new DateInterval('PT' . (int)$parts[0] . 'H' . $parts[1] . 'M' . $parts[2] . 'S');
// Add interval to date
$dt->add($interval);
// Format date as you need
echo $dt->format('Y-m-d H:i:s');
You could create a duration in seconds by comparing today at "00:00:00" and today at $hours. Actually, strtotime($hours) returns the timestamp of today at $hours, so, the addition of the two timestamp don't give the expected result.
If $hours is lesser than 24 hours, you could use:
$date = '2018-03-26 11:20:35';
$hours = '02:25:10';
$d0 = strtotime(date('Y-m-d 00:00:00'));
$d1 = strtotime(date('Y-m-d ').$hours);
$sumTime = strtotime($date) + ($d1 - $d0);
$new_time = date("Y-m-d H:i:s", $sumTime);
echo $new_time;
Outputs:
2018-03-26 13:45:45
You should check DateTime::add:
http://php.net/manual/en/datetime.add.php
http://php.net/manual/en/datetime.examples-arithmetic.php
Example:
<?php
// Convert h:m:s format to PThHmMsS format
sscanf('02:25:10', '%d:%d:%d', $hour, $minute, $second);
$intervalSpec = sprintf('PT%dH%dM%dS', $hour, $minute, $second);
$datetime = new DateTimeImmutable('2018-03-26 11:20:35');
$newDatetime = $datetime->add (new DateInterval($intervalSpec));
echo $newDatetime->format(DateTime::W3C);
It could be done with some simple string manipulation:
$dt = new DateTime("$date UTC");
$modify = preg_replace('/:/', ' hours ', $hours, 1);
$modify = preg_replace('/:/', ' minutes ', $modify, 1);
$modify .= ' seconds';
$dt->modify($modify);
demo
If you have MySQL as your data storage, you could do:
DATE_ADD(field1, INTERVAL field2 HOUR_SECOND)
demo
you can do something like:
$hour = $hours->format('H'); //This way you get a string which contains the hours
$date->modify('+'.$hour.' hour'); //you modify your date adding the hours
I'm assuming you only need the hours, and not minutes and seconds
EDIT:
you can do like that using regexp
$date = new \DateTime('2018-03-26 11:20:35');
$hours ='02:25:10';
preg_match("/^([0-9].*):([0-9].*):([0-9].*)/",$hours,$matches);
$date->modify('+'.$matches[1].' hour');
$date->modify('+'.$matches[2].' minute');
echo $date->modify('+'.$matches[3].' second')->format('Y-m-d H:i:s');

Add fractional hours to a DateTime in php

I have a system which I need to add a certain amount of fractional hours.
I've been searching and this is what I got, by far it's the most accurate method, but still doesn't give me the answer I need
function calculateHours($hours){
$now = new DateTime("2017-10-25 10:23:00");
$time = array();
$time = explode(".", $hours);
$time [1] += $time [0]*60;
$now->modify("+".$time[1]." hours");
return $now;
}
$diff = 119.23;
$answer = calculateHours($diff);
echo $answer ->format('Y-m-d H:i:s');
The answer that I want to reach is "2017-11-09 11:00:00" and I receive "2017-10-25 12:22:23" instead
Adding the hours is not correct. When you multiply hours times 60 it will make minutes.
This code should work.
function calculateHours($hours){
$now = new DateTime("2017-10-25 10:23:00");
$time = explode(".", $hours);
$time[1] += $time[0]*60;
$now->modify("+".$time[1]." minutes");
return $now;
}
$diff = 119.23;
$answer = calculateHours($diff);
echo $answer->format('Y-m-d H:i:s');
Result is 2017-10-30 09:46:00
You should use DateInterval php class to create an inverval with x seconds from your $hours variable.
Then you just have to use the datetime add interval method to modify your date
Please take a look a this example
function calculateHours($hours){
$now = new DateTime("2017-10-25 10:23:00");
var_dump($now);
$timeParts = explode(".", $hours);
// Where 23 is a percentage of on hour
$minutes = $timeParts[0] * 60 + round($time[1] * 60 / 100);
// Where 23 is the number of minutes
$minutes = $timeParts[0] * 60 + $time[1];
$interval = new DateInterval(sprintf('PT%dM', $minutes));
$now->add($interval);
echo $now->format('Y-m-d H:i:s');
return $now;
}
Use date_add
date_add($now, date_interval_create_from_date_string($tempo[1]' hours'));
or as object:
$now->add( DateInterval::createFromDateString($tempo[1].' hours'));

Comparing datetimes in php

I am comparing a date with a datetime and I get the result I expect however I also am wondering if there is a better way to display my output and I have a query on my current output also.
Here is a snippet of my current code:
<?php
$todayDate = date('Y-m-d');
$seconds = strtotime($todayDate) - strtotime($dueDate);
$hours = $seconds / 60 / 60;
echo number_format($hours, 2);
?>
in my case $dueDate in my database here is 2017-06-26 09:11:28 so the output is displaying as -57.19. My question, is there is a clean way to strip the - and also add h after the hours and m after the minutes so the output looks like this?
57h 19m
UPDATE
So After tinkering around I have managed to do this:
substr($dateFormat,0,3).'h '.substr($dateFormat,4).'m';
The output now is -57h 19m
I still have this negative character, im not sure if that is actually correct I cannot seem to work it out because the date in my database is a day ahead but it shows a negative value...
Using the DateTime class makes it very simple
$dueDate = '2017-06-26 09:11:28';
$due = DateTime::createFromFormat('Y-m-d H:i:s', $dueDate);
$today = new DateTime();
$diff = $today->diff($due);
echo $diff->format('%hh %im');
Result:
11h 37m
But as you asked about timezones, here is how to add those in as well. And also as you orignial date was in fact some days distant I added a more accurate difference output
$dueDate = '2017-06-25 00:00:00';
$due = DateTime::createFromFormat('Y-m-d H:i:s', $dueDate, new DateTimeZone('Europe/London'));
$today = new DateTime('now', new DateTimeZone('Europe/London'));
$diff = $today->diff($due);
echo $diff->format('%R %hh %im').PHP_EOL;
if ( $diff->invert ) {
echo $diff->format('Overdue by %dd %hh %im');
} else {
echo $diff->format('You have %dd %hh %im till overdue');
}
Results
+ 1h 6m
You have 0d 1h 6m till overdue
You need to keep date integer
$time = time();
after
you can use this every where and evert way
For example
$date1 = time();
$date2 = time();
$comparingdate = $date2 - $date1;
$myFormat = date("T-m-d h:i:s",$comparingdate); // Show how you want
use floor and round functions to get the minutes and hours after convert the date to positive sign using abs function
<?php
$todayDate = date('Y-m-d');
$dueDate = "2017-06-26 09:11:28";
$seconds =abs(strtotime($todayDate) - strtotime($dueDate));
$hours =floor($seconds / 60 / 60);
$minutes= round($seconds / 60 / 60 - $hours,2)*100;
echo "<br>";
echo $hours. " H :";
echo $minutes. " M ";
?>

How to get the hour minute and second?

The future time is :2012-05-26 00:00:00
supposed there are three variable: $hour $minute $second
now, i want to using the future time subtract now time. then give the left hour to $hour,give the left minute to $minute,give the left second to $second.
i am sorry i am new of php, now i get stucked how to do the math operation ? thank you
A very good resource for dates and time..
http://www.php.net/manual/en/function.time.php
-there are samples here doing something similar.
Check the date_diff function. There's the exact solution to what you're asking there.
And here's the page (DateInterval::format) documenting how you can format the output.
$now = date_create();
// use "now" and necessary DateTimeZone in the arguments
$otherDate = date_create('2020-04-13');
$interval = date_diff($now, $futureDate);
echo $interval->format('%a days');
The following are the math operations for the difference in hours,minutes and seconds
$future_datetime = '2012-05-26 00:00:00';
$future = strtotime($future_datetime); //future datetime in seconds
$now_datetime = date('Y-m-d H:i:s');
$now = date('U'); //now datetime in seconds
//The math for calculating the difference in hours, minutes and seconds
$difference = $future - $now;
$second = 1;
$minute = 60 * $second;
$hour = 60 * $minute;
$difference_hours = floor($difference/$hour);
$remainder = $difference - ($difference_hours * $hour);
$difference_minutes = floor($remainder/$minute);
$remainder = $remainder - ($difference_minutes * $minute);
$difference_seconds = $remainder;
echo "The difference between $future_datetime and $now_datetime is $difference_hours hours, $difference_minutes minutes and $difference_seconds seconds";

How do I find the hour difference between two dates in PHP?

I have two dates, formated like "Y-m-d H:i:s". I need to compare these two dates and figure out the hour difference.
You can convert them to timestamps and go from there:
$hourdiff = round((strtotime($time1) - strtotime($time2))/3600, 1);
Dividing by 3600 because there are 3600 seconds in one hour and using round() to avoid having a lot of decimal places.
You can use DateTime class also -
$d1= new DateTime("06-08-2015 01:33:26pm"); // first date
$d2= new DateTime("06-07-2015 10:33:26am"); // second date
$interval= $d1->diff($d2); // get difference between two dates
echo ($interval->days * 24) + $interval->h; // convert days to hours and add hours from difference
As an addition to accepted answer I would like to remind that \DateTime::diff is available!
$f = 'Y-m-d H:i:s';
$d1 = \DateTime::createFromFormat($date1, $f);
$d2 = \DateTime::createFromFormat($date2, $f);
/**
* #var \DateInterval $diff
*/
$diff = $d2->diff($d1);
$hours = $diff->h + ($diff->days * 24); // + ($diff->m > 30 ? 1 : 0) to be more precise
\DateInterval documentation.
$seconds = strtotime($date2) - strtotime($date1);
$hours = $seconds / 60 / 60;
You can try this :
$time1 = new DateTime('06:56:58');
$time2 = new DateTime('15:35:00');
$time_diff = $time1->diff($time2);
echo $time_diff->h.' hours';
echo $time_diff->i.' minutes';
echo $time_diff->s.' seconds';
Output:
8 hours 38 minutes 2 seconds
The problem is that using these values the result is 167 and it should be 168:
$date1 = "2014-03-07 05:49:23";
$date2 = "2014-03-14 05:49:23";
$seconds = strtotime($date2) - strtotime($date1);
$hours = $seconds / 60 / 60;
$date1 = date_create('2016-12-12 09:00:00');
$date2 = date_create('2016-12-12 11:00:00');
$diff = date_diff($date1,$date2);
$hour = $diff->h;
This is because of day time saving.
Daylight Saving Time (United States) 2014 began at 2:00 AM on
Sunday, March 9.
You lose one hour during the period from $date1 = "2014-03-07 05:49:23" to
$date2 = "2014-03-14 05:49:23";
You can try this:
$dayinpass = "2016-09-23 20:09:12";
$today = time();
$dayinpass= strtotime($dayinpass);
echo round(abs($today-$dayinpass)/60/60);
You can use strtotime() to parse your strings and do the difference between the two of them.
Resources :
php.net - strtotime()

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