write to file

[Anon]

i have a form this form has to text box

i want when a user fill the text box and press ok

i want to store the values in a file as this

1 txtonevalue txt2value
and when other user want to write to file also
1 txtonevalue txt2value
2 txtonevalue txt2value

example
1 jem [e-mail]
2 rolla [e-mail]

as that !! and after this values are stored i want to read it and but it on a table

now the realy q is how to write it and how to read it and how can a number auto increment ..
Thanx

[Anon]

RTFM man... or checkout one of phpbuilders tuts...