time to decimal

[bolter]

I thought this was a pretty common problem but haven't been able to find any help online

how do I transform a variable who contains a time in the format hh:mm:ss such as $var = 21:30:00

into a decimal one such as $var1 = 21.5 (the seconds can be eliminated)

thanks

 

 

[fooDigi]

this works on some level, although may be not that elegant of code, but see if it works for you ...

 

<?
// 12:30:00
$time = '11:49:22';

# strip the seconds
$time = preg_replace('/:[0-9]{2}$/','',$time);

# split hour and minutes
$time_parts = explode(":",$time);

# output hour ... and minutes put into decimal form
echo $time_parts[0] + $time_parts[1] / 60;
?>