php date function calculation not working

Question

Hello i am learning php i tried to use the date function to display the current time. I have an if statement to check the current time whether it is greater than the next hour. Here is the code

<?
$current_time= date('G:i:s');
$next_time= date('G:i:s',strtotime('+1hour'));
if($current_time > $next_time )
{

    echo $current_time." is greater than ".$next_time;


}
?>

At the time of writing this code it was 9:23:39 and the next hour should have been 10:23:39

Surprisingly i got :

9:23:39 is greater than 10:23:39

Am i missing something here. Please help

you compare strings, not times

rabudde
– rabudde

2011-08-16 05:30:39 +00:00
Commented Aug 16, 2011 at 5:30 — rabudde
– rabudde, Commented Aug 16, 2011 at 5:30

Vincent Savard · Accepted Answer · 2011-08-16 05:30:33Z

3

Keep in mind you are comparing strings, not numbers. 9 is greater than 1 and therefore returns true.

Either use the DateTime class to do this, or compare the unix timestamps (time() and strtotime('+1hour'))

answered Aug 16, 2011 at 5:30

Vincent Savard

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2 Comments

adam Over a year ago

you mean something like this $next_time=time(strtotime('+1hour'));

Vincent Savard Over a year ago

strtotime returns a timestamp itself. Just store time() in a variable and strtotime('+1 hour') in another.

thebtm · Accepted Answer · 2011-08-16 05:39:14Z

1

you could use a integer to work the if statement

$var = date("U",timestamp)

to get the number of Seconds since the Unix Epoch (January 1 1970 00:00:00 GMT) thus giving you a number which you can determine which one is greater.

answered Aug 16, 2011 at 5:39

thebtm

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2 Comments

adam Over a year ago

i did something like this and it worked : $current_time= date("U"); $next_time=date("U",strtotime('+1hour'));

thebtm Over a year ago

i normally configure my timestamps in other variables but you have a great idea.

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