subtracting dates !!?

[Anon]

I have run into problems with subtracting two dates in my php script.

I need to subtract a date from the current date obtained by the date() php function - so that I know how many days have passed.

I can implement something badly with the date("z"), but everything goes pear shaped when the day of the year for current gets back to '0' and the date I want to subtract is something like 361..

Can anyone help me with subtracting two dates to get the amount of days that has passed??

Thanks,
Ian

[Anon]

convert to UNIX dates (which is relative to some day in the seventies) and presto.

[herve]

you can convert your date in TIMESTAMP format, that way they are express in number
of seconds since the 1/1/1970, so you can
substract, you get the difference in number
of seconds, and then you convert in
days by dividing by 3600*24

[foxden]

I always use date(U) which is number of seconds since 1-1-70. Then you can subtract two integers and convert that string to what ever format you like using the same date() function.

Josh