Find Minimum of two given times in PHP

Question

Can somebody help me compare two times and found out which one is less than other. by less I mean which one has older time than other.

Times are retrieved from database :

$time1 = strtotime($row[0]);
$time2 = strtotime($row2[0]);

It's clear that you've made a real effort to do this yourself — Mark Baker, Apr 12 '13 at 07:51
tag is datetime and you said times in text? if it is php datetime object it is simple : $d1 = new DateTime('2012-04-12 00:00:00'); $d2 = new DateTime('2012-04-10 00:00:00'); if($d1<$d2) ... — Bojan Kovacevic, Apr 12 '13 at 07:52
This question isn't answered before I don't want their difference I need the minimum. — Mike Ezzati, Apr 12 '13 at 08:03
Just compare $time1 and $time2 as they are now integer values which can be easily compared. — kuldeep.kamboj, Apr 12 '13 at 08:04

Theox · Answer 1 · 2013-04-12T07:56:21.220

3

If you only want to know which date is earlier, you can simply compare them.

Here is an example from the Php manual :

$d1 = new DateTime('1492-01-01');

$d2 = new DateTime('1492-12-31');


var_dump($d1 < $d2);

var_dump($d1 > $d2);

var_dump($d1 == $d2);

?>

Results :

bool(true)

bool(false)

bool(false)

edited Apr 12 '13 at 07:56

answered Apr 12 '13 at 07:50

Theox

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score 0 · Accepted Answer · answered Apr 12 '13 at 07:50

0

You have to convert your input dates into timestamps, then just subtract one from the other.

$timestampA = 1221672010;
$timestampB = 1221671010;
$diff       = $timestampA - $timestampB;

if ( $diff > 0 ) {
  // $timestampA date is after $timestampB date
} else if ( $diff < 0 ) {
  // $timestampA date is before $timestampB date
} else {
  // dates are equal
}

To convert string date into timestamp you can use strtotime function.

answered Apr 12 '13 at 07:50

hsz

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Is there any advantage to taking one from the other, as opposed to checking if one is bigger? – Jamie Taylor Apr 12 '13 at 08:01
He is already done this by using strtotime. – kuldeep.kamboj Apr 12 '13 at 08:04

score 0 · Answer 3 · answered Apr 12 '13 at 07:51

0

I believe that by 2 times you mean 2 dates. You can always convert them to timestamp and them compare the two numbers.

for that you can use strtotime function

answered Apr 12 '13 at 07:51

Paul Moldovan

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score 0 · Answer 4 · answered Apr 12 '13 at 07:52

If you mean time() for times data use min function: http://fr.php.net/min

Otherwise, http://php.net/manual/en/datetime.diff.php

$time1 = time();
$time2 = time()-3600;
var_dump(min($time1, $time2));

Or

$datetime1 = date_create('2009-10-11');
$datetime2 = date_create('2009-10-13');
$interval = date_diff($datetime1, $datetime2);
echo $interval->format('%R%a days')

score 0 · Answer 5 · answered Apr 12 '13 at 07:54

you can use the time() function witch returns the current time measured in the number of seconds since the Unix Epoch (January 1 1970 00:00:00 GMT)

or if you have the date-time in string format you can use strtotime() to convert it before comparaison.

The smallest number is the oldest time !

score 0 · Answer 6 · answered Apr 12 '13 at 08:05

0

$time = strtotime(min(array($row[0], $row2[0])));

Gives you the earliest time.

answered Apr 12 '13 at 08:05

powtac

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Find Minimum of two given times in PHP

6 Answers6