Reputation: 2346
What the best way to convert 24 hours time to seconds so it can be used for comparison if statement..
function HourMinuteToDecimal($hour_minute) {
$t = explode(':', $hour_minute);
return $t[0] * 60 + $t[1];
}
echo HourMinuteToDecimal("23:30");
return 1410
If you try to convert midnight time (00:00) to seconds, it will not work. What is the solution to this?
00:00, 00:30, 01:00, 01:30, etc.
if (HourMinuteToDecimal("01:30") > HourMinuteToDecimal("23:30")) { .. }
This will not work.
Upvotes: 10
Views: 30310
Reputation: 9994
PHP5.3
$formattedTime = '00:01:38';
$seconds = strtotime('1970-01-01 ' . $formattedTime . 'GMT')
Upvotes: 10
Reputation: 3988
To convert function:
function hoursToSecods ($hour) { // $hour must be a string type: "HH:mm:ss"
$parse = array();
if (!preg_match ('#^(?<hours>[\d]{2}):(?<mins>[\d]{2}):(?<secs>[\d]{2})$#',$hour,$parse)) {
// Throw error, exception, etc
throw new RuntimeException ("Hour Format not valid");
}
return (int) $parse['hours'] * 3600 + (int) $parse['mins'] * 60 + (int) $parse['secs'];
}
Write on the fly, no tested :-P
so, you can use strtotime to convert the format date in unix timestamp and comparte using a standar operators (== < > >= <= !=, etc) ex:
$t1 = "23:40:12";
$t2 = "17:53:04";
$h1 = strtotime("0000-00-00 $t1");
$h2 = strtotime("0000-00-00 $t2");
$h1 == $h2; // if are equals
$h1 > $h2; // if h1 is mayor at h2
$h1-$h2; // dieference in seconds, etc.
etc..
Upvotes: 6
Reputation: 385385
You seem to be asking contradicting things.
HH:MM
into seconds.If you want to allow HourMinuteToDecimal("01:30") > HourMinuteToDecimal("23:30")
to be true without a date, then, well, any comparison will return true
.
If you want to do this properly, include the date (YYYY-MM-DD HH:MM:SS
) and use strtotime
in PHP to get the number of seconds since the UNIX epoch.
Also, your function returns minutes, not seconds.
Upvotes: 4
Reputation: 21361
You can compare objects of type time
using the standard <
, >
, ==
operators. Use strtotime
to convert the string to time, then compare.
Upvotes: 0