how to check date expiration?

check expire date in mysql database

date------->status
10/27/2010->approve
10/28/2010->approve
10/26/2010->approve

date now is 10/26/2010

so it will search from the table where date=datenow then update the status to finish

Is the date still stored as a string or is using a DATE column type in mysql?

UPDATE table SET column = 'finish' WHERE STR_TO_DATE( date, '%m/%d/%Y' )= CUR_DATE()

Something like that would probably work for you, assuming your structure is similar to what it was previously.

it is a string sir but this

UPDATE table SET column = 'finish' WHERE STR_TO_DATE( date, '%m/%d/%Y )= CUR_DATE()

will update all date that the same with current date but different status.i want to update only the status approve..

just add another condition to the query then.

UPDATE table SET column = 'finish' WHERE STR_TO_DATE( date, '%m/%d/%Y' )= CUR_DATE() AND column = 'approve'
commented: nicely done +1

UPDATE table SET column = 'finish' WHERE STR_TO_DATE( date, '%m/%d/%Y' )= CURDATE() AND column = 'approve'

thanks sir..
last question how to alert if how many fields where updated

Depends on the mysql extension you are using in php. mysql_affected_rows(), mysqli->affected_rows()

sir what if the problem is like this

database

date------->status
10/27/2010->approve
10/28/2010->approve
10/26/2010->approve

form
if he modify the current date to 10/27/2010

this will be the result
date------->status
10/27/2010->finish
10/28/2010->approve
10/26/2010->finish

because this code UPDATE table SET column = 'finish' WHERE STR_TO_DATE( date, '%m/%d/%Y' )= CURDATE() AND column = 'approve' only update the current date like this:
10/27/2010->finish
10/28/2010->approve
10/26/2010->approve

it not update the date exceeded

lol i just put < to the current date and it works :)