在PHP中比较日期时间（分钟）？

Question

I'm trying to compare two different new DateTime by minutes but I have no luck with it!

one is the end date which is in the future and the other one is the end date + 10 minutes.

so when the end date is smaller than the one with 10 minutes added, i need to do something and if the end date is still greater than the one with 10 minutes added, i need to run my code as usual.

my current code is this:

$end_date = new DateTime('2015-01-21 17:28:23');
$datetime1 = new DateTime();
$datetime2 = new DateTime($end_date);
$interval = $datetime1->diff($datetime2);
$finalDate = $interval->format('%d day %h hours %i minutes %s seconds');

$minutes_to_add = 10;

$time = new DateTime($end_date);
$time->add(new DateInterval('PT' . $minutes_to_add . 'M'));


echo $stamp = $time->format('Y-m-d H:i:s');
echo '<br />';
echo $stamp = $datetime2->format('Y-m-d H:i:s');

if( $time->format('Y-m-d H:i:s') < $datetime2->format('Y-m-d H:i:s')){
echo("result_messageTi=times up");
}
    }
}else{
echo("result_messageTi=$finalDate");    
}

the code above does not compare the two given times at all and in result i get nothing on my php page.

could someone please advise on this?

Thanks in advance.

Answer 1

You can compare DateTime objects directly so this should work and I think that extra curly bracket might be causing syntax error and so you are not seeing anything. Try this:

if( $time < $datetime2){
    echo("result_messageTi=times up");
}else{
    echo("result_messageTi=$finalDate");    
}