php - Calculate different from string - php

Question

I have 2 string like this "2018/04/10-14:54:55" and "2018/04/10-14:56:10".
How can I calculate different between them? I've used strtotime to change the string to date but it gives the wrong value.
Please help me with this.
Thank you

Answer 1

<?php
$time1 = '2018/04/10-14:54:55';
$time2 = '2018/04/10-14:56:10';
$format = 'Y/m/d-H:i:s';
$t1 = DateTime::createFromFormat($format, $time1);
$t2 = DateTime::createFromFormat($format, $time2);
echo "time1" . $t1->format('Y-m-d H:i:s') . "<br/>";
echo "time2" . $t2->format('Y-m-d H:i:s') . "<br/>";
$difference = $t1->diff($t2);
echo $difference->format('%s%a secs');
You can use specific format to create a datetime ojbect, after that you can use diff function to get the difference.

Answer 2

Please try this code.
function time_difference($time_1, $time_2, $limit = null)
{
$val_1 = new DateTime($time_1);
$val_2 = new DateTime($time_2);
$interval = $val_1->diff($val_2);
$output = array(
"year" => $interval->y,
"month" => $interval->m,
"day" => $interval->d,
"hour" => $interval->h,
"minute" => $interval->i,
"second" => $interval->s
);
$return = "";
foreach ($output AS $key => $value) {
if ($value == 1)
$return .= $value . " " . $key . " ";
elseif ($value >= 1)
$return .= $value . " " . $key . "s ";
if ($key == $limit)
return trim($return);
}
return trim($return);
}
$time1 = '2018/04/10 14:54:55';
$time2 = '2018/04/10 14:56:10';
$resp = time_difference ($time1, $time2);
echo $resp;
output:
1 minute 15 seconds

Answer 3

This is an example, I have explained the details in the code itself:
<?php
date_default_timezone_set("Asia/Tehran"); //Set your timezone to avoid warnings in PHP error_log
// Use '/' for American date format and use '-' for Europian date format
// Use 'T' instead of '-'
$time_1 = strtotime( str_replace('-', 'T', "2018/04/10-14:54:55") ); //Replace '-' to 'T' to get "2018/04/10T14:54:55"
$time_2 = strtotime( str_replace('-', 'T', "2018/04/10-14:56:10") ); //Replace '-' to 'T' to get "2018/04/10T14:56:10"
$diff = $time_2 - $time_1;
echo $diff; // in seconds
?>
I hope it helps.