Access dynamic variable through POST

[mikerh9]

My php page takes data from the database such as ID, Date, Value and prints on the screen. About 20 entries are printed on the screen. The each entry has option 'yes' or 'no'.

So I need to gather the information about each entry and update database. I cannot access the variable from $POST because parameter is not static and $POST is not working like this $_POST['$id'];

Any ideas how I can make this working?

[mrhappiness]

$_POST[$var]

without ' and without "
simply $var

[swr]

Try this:

$POST[$POST['foo']]

That will pull the form element specified by the "foo" form element.

Be aware though, that this kind of indirection can sometimes be dangerous. $POST[$POST['foo']] should be okay because it only allows users to access variables they have submitted themselves, but something like this:

$GLOBALS[$POST['foo']]

would allow the user to access any global variable. That would be bad if you have any important information in any global variables (database password, for example).