I wish to multiply 2 variables so that one of them is in the hour format (hh:mm),
How can I do so? The answer I am getting is 0:
<?php
$num = 5;
$timeUnit = "00:01";
$waitingTime = $num * $timeUnit;
echo $waitingTime;
I need to get 00:05 (5 min) in the output, but I am getting 0.
Hope this will help you
$num=100;
$timeUnit="00:02";
$timeUnit;
$time=explode(":",$timeUnit);
$waitingTime=$num*$time[1];
$minute = sprintf("%02d", ($waitingTime%60));
$hour = sprintf("%02d", ($waitingTime/60));
$current_time = floor($hour).':'.($minute);
echo $current_time;
$num=20;
$timeUnit="00:03";
$time=explode(":",$timeUnit);
$waitingTime=$num*$time[1];
$sec=$time[0]+$waitingTime%60;
$hour=floor($waitingTime/60);
$timeUnit1="".$hour.":".$sec."";
$current=strtotime($timeUnit1); //seconds of current time
echo date("H:i",$current);
You can do like this
I ended up converting the time into seconds, did the multiply and converted it to "time format" again:
$num=200;
$timeUnit="00:01:00";
$time=explode(":",$timeUnit);
$sec=$time[1]*60;
$sec=$sec*$num;
$diff = $sec;
$format = sprintf('%02d:%02d:%02d', ($diff / 3600), ($diff / 60 % 60), $diff % 60);
echo $format;
Thanks for your help
You can't compute string and digits this way.
All you would have to do would be to create a function/method that would implement the behavior you want and use it
Related
I am creating a timesheet whereby it shows expected and actual hours.
The durations are saved like the below
23:15 - 23 hours and 15 mins
25:45 - 25 hours and 45 mins
I need to work out the difference in hours and mins between the two (extra hours worked)
I have tried the below
$acutal=='23:15';
$expected=='25:45';
$start_time = new DateTime("1970-01-01 $acutal:00");
$time = $start_date->diff(new DateTime("1970-01-01 $expected:00"));
This does work, however when the hours are over 24:00 it throws an error (obviously because it's reading it as time)
Uncaught exception 'Exception' with message 'DateTime::__construct():
Failed to parse time string (1970-01-01 25:45:00)
Is there another way to do this?
You could check if the number of hours are greater than 24, and if so, add a day, and remove 24 hours.
$actual='23:15';
$expected='25:45';
$day = 1;
list($hrs, $min) = explode(':', $expected);
if ($hrs > 24) { $day += 1; $hrs -= 24; }
$start_time = new DateTime("1970-01-01 $actual:00");
$time = $start_time->diff(new DateTime("1970-01-$day $hrs:$min:00"));
echo $time->format('%hh %Im');
Output:
2h 30m
Please also note that == is used to compare, not to assign.
You can also change the if ($hrs > 24) by while(), if there is 48 hours or more.
edit
As pointed out by #CollinD, if the time exceed the number of days of the month, it will fail. Here is another solution:
$actual='23:15';
$expected='25:45';
list($hrs, $min) = explode(':', $actual);
$total1 = $min + $hrs * 60;
list($hrs, $min) = explode(':', $expected);
$diff = $min + $hrs * 60 - $total1;
$start_time = new DateTime();
$expected_time = new DateTime();
$expected_time->modify("+ $diff minutes");
$time = $start_time->diff($expected_time);
echo $time->format('%hh %Im');
You can do it manually by keeping track of the number of minutes worked - this will be exact and will also allow you to show negative differences.
<?php
// get the difference in H:mm between two H:mm
function diff_time($actual, $expected) {
$diff_mins = mins($actual) - mins($expected);
return format_mins($diff_mins);
}
// convert a HH:mm to number of minutes
function mins($t) {
$parts = explode(':', $t);
return $parts[0] * 60 + $parts[1];
}
// convert number of minutes into HH:mm
function format_mins($m) {
$mins = $m % 60;
$hours = ($m - $mins) / 60;
// format HH:mm
return $hours . ':' . sprintf('%02d', abs($mins));
}
var_dump(diff_time('23:15', '25:45'));
var_dump(diff_time('25:15', '23:45'));
This outputs:
string(5) "-2:30"
string(4) "1:30"
.. first, 2:30 less than expected, for the second 1:30 more than expected.
You can try using datetime functions but it seems a lot more straightforward to me to treat the times as string, use split or explode to get hours and minutes, convert to integers, get the difference in minutes and convert it back to hours and minutes (integer divide by 60 and remainder).
$t1=explode(':',$expected);
$t2=explode(':',$actual);
$d=60*($t1[0]-$t2[0])+t1[1]-t2[1];
$result=str_pad(floor($d/60),2,'0',STR_PAD_LEFT).':'.str_pad($d%60,2,'0',STR_PAD_LEFT);
This question already has answers here:
How to convert a "HH:MM:SS" string to seconds with PHP?
(4 answers)
Closed 5 years ago.
How can I convert a digit time into seconds?
I need to compare the time so I though that it is easier to convert the digit time to seconds and compare the seconds later on.
for example:
00:00:33
00:01:33
02:01:33
You can write a custom parser if you are looking for precise seconds from that format.
Something like this should do the trick :
echo hhmmss2seconds("18:24:35");
function hhmmss2seconds($time) {
$digits = explode(":", $time);
$seconds = 0;
$seconds = $seconds + intval($digits[0]) * 3600; // hours
$seconds = $seconds + intval($digits[1]) * 60; // minutes
$seconds = $seconds + intval($digits[2]); // seconds
return $seconds;
}
You want to use strtotime(). This converts "digit time" to Unix time.
$time_in_seconds = strtotime('00:00:33');
Try this:
echo strtotime("1970-01-01 00:00:11 UTC");
Try This its working
<?php
function time_to_seconds($time) {
list($h, $m, $s) = explode(':', $time);
return ($h * 3600) + ($m * 60) + $s;
}
echo time_to_seconds("00:00:33");
echo time_to_seconds("00:01:33");
echo time_to_seconds("02:01:33");
?>
Thank you..
How do I divide a decimal by time queried from database as time format.
Any idea?
$time = date($entity->getTime()->format('H:i:s'));
$speed = $distance/$time
Which is definitely wrong and if my time is 00:40:00, I get some division by zero error.
I am unable to convert it to seconds because php takes DateTime from Time format in database.
I propose that you get your time in seconds, but you need to convert minutes and hours to seconds.
$seconds = date($entity->getTime()->format('s'));
$minutes = date($entity->getTime()->format('i'));
$hours = date($entity->getTime()->format('h'));
$time = $hours * 3600 + $minutes * 60 + $seconds;
$speed = $distance/$time;
Checkout strtotime() to convert it to seconds.
Docs: http://php.net/manual/en/function.strtotime.php
With strtotime it is a little bit tricky and only goes to 24:59:59.
Else use Voitcus solution.
$time = '00:40:00';
echo strtotime("1970-01-01 $time UTC");
1) Get time in seconds
function time2seconds($time='00:00:00')
{
list($hours, $mins, $secs) = explode(':', $time);
return ($hours * 3600 ) + ($mins * 60 ) + $secs;
}
$time = date($entity->getTime()->format('H:i:s'));
$timeInSeconds = time2seconds($time);
$distance = 40000;
$speed = $distance/$timeInSeconds;
2) If you are using MySQL database use function TIME_TO_SEC(time)
$time = date($entity->getTime()->format('H:i:s'));
$speed = $distance/$time
It's wrong. You must do:
$speed = $distance/$time * 3.6;
For instance this equation is valid 30km/H = 30000m * 3600 seconds * 3.6
This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
Converting Seconds to HH:MM:SS
I have an integer as a number of seconds. I want to convert that integer into into hours/minutes/seconds like this:
1:45:32
If the number of seconds equates to less than one hour then it should return the string:
45:32
If the number of minutes is less than 10 it should return the string formatted like this:
3:25
And finally if the number of seconds equate to less than 1 minute, it should return the following:
0:04
What is the best way to do this in PHP?
The simpelst approch would be
if($seconds < 3600){
$format = 'i:s';
}else{
$format = 'G:i:s';
}
echo date($format, $seconds);
EDIT: this wouldnt fix your minutes < 10 problem.
you could handle the minutes by itself. like
$time = ($seconds >= 3600) ? date('G', $seconds).':' : '';
$time .= intval(date('i',$seconds)).':'.date('s', $seconds);
<?php
$seconds = (1*60 + 45)*60 + 32; // 1:45:32
define("SECONDS_IN_HOUR", 3600);
define("SECONDS_IN_MINUTE", 60);
// hours
if ($seconds >= SECONDS_IN_HOUR)
{
print floor($seconds/SECONDS_IN_HOUR) . ":";
$seconds = $seconds % SECONDS_IN_HOUR;
}
// minutes
if ($seconds >= SECONDS_IN_MINUTE)
{
print floor($seconds/SECONDS_IN_MINUTE) . ":";
$seconds = $seconds % SECONDS_IN_MINUTE;
}
// seconds
print $seconds;
?>
I think Rufinus is pretty close:
foreach(array(60 => ' 0:s', 3600 => 'i:s', 'G:i:s') as $val => $format)
{
if ($seconds < $val) break;
}
echo ltrim(ltrim(gmdate($format, $seconds), '0'), ' ');
This variant uses a configuration stored inside an array which associates a format string based on a time value in seconds (as key). The last element is the default format that will fall through.
Edit: Unfortunately there is no formatting code in date that allows to specify minutes w/o a leading there. Therefore the date string needs to be re-formatted to remove leading 0's occasionally. It's done with ltrim here.
function formatHMS($time) {
$s = $time % 60;
$time= floor($time/60);
$m = $time % 60;
$time= floor($time/60);
$h = floor($time);
$str = $s;
if ($m>0)
$str = "$m:$str";
if ($h>0)
$str = "$h:$str";
return $str;
}
Consider using explode() & implode() and then apply your logic of less-than & greater-than!
I am trying to take a decimal and convert it so that I can echo it as hours, minutes, and seconds.
I have the hours and minutes, but am breaking my brain trying to find the seconds. Been googling for awhile with no luck. I'm sure it is quite simple, but nothing I have tried has worked. Any advice is appreciated!
Here is what I have:
function convertTime($dec)
{
$hour = floor($dec);
$min = round(60*($dec - $hour));
}
Like I said, I get the hour and minute without issue. Just struggling to get seconds for some reason.
Thanks!
If $dec is in hours ($dec since the asker specifically mentioned a decimal):
function convertTime($dec)
{
// start by converting to seconds
$seconds = ($dec * 3600);
// we're given hours, so let's get those the easy way
$hours = floor($dec);
// since we've "calculated" hours, let's remove them from the seconds variable
$seconds -= $hours * 3600;
// calculate minutes left
$minutes = floor($seconds / 60);
// remove those from seconds as well
$seconds -= $minutes * 60;
// return the time formatted HH:MM:SS
return lz($hours).":".lz($minutes).":".lz($seconds);
}
// lz = leading zero
function lz($num)
{
return (strlen($num) < 2) ? "0{$num}" : $num;
}
Very simple solution in one line:
echo gmdate('H:i:s', floor(5.67891234 * 3600));
Everything upvoted didnt work in my case.
I have used that solution to convert decimal hours and minutes to normal time format.
i.e.
function clockalize($in){
$h = intval($in);
$m = round((((($in - $h) / 100.0) * 60.0) * 100), 0);
if ($m == 60)
{
$h++;
$m = 0;
}
$retval = sprintf("%02d:%02d", $h, $m);
return $retval;
}
clockalize("17.5"); // 17:30
I am not sure if this is the best way to do this, but
$variabletocutcomputation = 60 * ($dec - $hour);
$min = round($variabletocutcomputation);
$sec = round((60*($variabletocutcomputation - $min)));
This is a great way and avoids problems with floating point precision:
function convertTime($h) {
return [floor($h), (floor($h * 60) % 60), floor($h * 3600) % 60];
}