PHP检查日期是否在某个小时内

Question

Given a DateTime Object how can I check if the hour falls under a certain range?

$local_time = new DateTime();

//time is after 06:00:00 am
if (date('H', $local_time) >= 6) {

echo "After 6am";

}

Answer 1

DateTime objects are comparible:

$local_time = new DateTime();
$six_am     = new DateTime('6am');

//time is after 06:00:00 am
if ($local_time  > $six_am) {

   echo "After 6am";

}

Demo

Note: this only works if the comparison is being done on the same day. It's gets more complex if you plan on crossing dates.