I'm trying to do some mathematics using a time value in PHP. It's dead
simple in MySQL:
mysql> select date, duration, miles, sec_to_time(time_to_sec(duration)
/ miles) as speed from runs where shoes=6 order by date;
++--+---+--+
| date | duration | miles | spe
> Unfortunately I want my darn PHP web page to do this calculation and
> spit it out with my other run data but I can not find any useful PHP
> function similar to MySQL's sec_to_time() or time_to_sec(). Nor can I
> make mktime() do anything useful here.
You probably want strtotime(), it can do t
