Password with one time use

[SATitan]

My question is really two questions:

1) How can you make a password prompt without a popup?

2) I'm pretty clear with how to password protect an application, but I'm trying to figure out if there is a way to make passwords usable only once?

What I want to do is to have an array of passwords, that go invalid once they're used.
Any advice?

[RizlaUK]

1) How can you make a password prompt without a popup?

if you dont want a popup then use some input objects and a button and hide them after use, or have a login/password page



2) I'm pretty clear with how to password protect an application, but I'm trying to figure out if there is a way to make passwords usable only once?

store the passwords in a text file (each one on a new line) and read the file to a table, use a for loop to check the password entered by the user against the ones in the table, if/when a match is found then remove that table index and write the table back to the same.

EDIT: I would advise encrypting the text file or passwords

[TimeSurfer]

either that or use mysql.

[RizlaUK]

either that or use mysql.

im working on a application registration system that uses mysql, just getting my head round the php part then its good to go

[TimeSurfer]

nice ;) let me know when you finish that.