PHP - Strtotime - Add hours

问题

I have this variable:

$timestamp = strftime("%Y-%m-%d %h:%M:%S %a", time ());

I simply want to add three hours and echo it out.

I have seen the way where you can do the 60 * 60 * 3 method or the hard code "+ 3 hours" where it understands the words.

What is the best way of getting this result?

回答1:

$timestamp = strftime("%Y-%m-%d %h:%M:%S %a", time() + 3*60*60)

3*60*60 is the best way

回答2:

The best way is what you think is more readable. The following expressions are identical:

time() + 3 * 60 * 60

strtotime('+3 hours')

回答3:

i always do like this

$current_time = date('Y-m-d H:i:s');
$new_time = strtotime($current_time . "+3hours");
echo $new_time;

or

$new_time = mktime(date('H')+3, 0, 0, date('m'), date('d'), date('Y'));
$new_time = date('Y-m-d H:i:s', $new_time);
echo $new_time;

回答4:

$time = new DateTime("+ 3 hour");
$timestamp = $time->format('Y-M-d h:i:s a');

Clear and concise :)

回答5:

You can use DateTime::modify to add time, but I would just do time()+10800.

回答6:

If you want to go 'modern':

$d = new DateTime();
$d->add(new DateInterVal('P3H'));
$timestamp = $d->format('Y-M-d h:i:s a');

refs: DateTime object

回答7:

Just add seconds to add hours:

strtotime($your_date)+2*60*60 

This will add two hours in your date.

来源：https://stackoverflow.com/questions/11076334/php-strtotime-add-hours