How do u know how much time has passed (timestamp)?

Question

PHP

Good afternoon!
I can't figure out how to calculate how much time has passed by timestamp in php. The database stores information about each device, including the time in timestamp format that has elapsed since the device was launched. Can you please tell me how to parse such a timestamp? Has anyone faced such a task?

Answer 1

It turns out that the time that is stored in the database is not a timestamp, but the so-called timeticks. Everything is simple here: timeticks / 100 I get seconds and I already convert them. Thank you for your feedback))

Answer 2

php.net/manual/en/datetime.diff.php

Answer 3

unix timestamp - time in seconds since 00:00:00 01/01/1970 UTC.
The time() function in PHP returns the current value of the timestamp.
Subtract the stored value from the current value - you get the elapsed number of seconds.

Answer 4

timestamp shows how many seconds have passed since 1970. I suspect that your database does not store the time since the device was started, but the timestamp of the last power-on. If you want to know how many seconds have passed since the last activation, you can, for example, do time() - $row['yourTimestamp']; If you want to show the on-time in a human-readable way, then you can do gmdate("Ymd\TH:i:s\Z", $row['yourTimestamp']);

Answer 5

$diff = time() - strtotime( timestamp );