Read all fields from a text file, update their values, then write back to txt file!?

[Mieke23]

Hi!

I have a .txt file with several lines (values) which need to be updated using a form and a PHP script.

I have a form which displays (reads from the .txt file) these values, and a submit button that should make a PHP script update these values and write back to the .txt file.

I can't figure out how to make the PHP script! I don't know how (and which functions to use), to put the new values (send from the form) back in the .txt file.

Thanks for your help!!

Mieke

[yelvington]

fopen in write mode
fwrite the data
fclose

Read the manual pages for those three functions carefully.

[Mieke23]

Hi,

Thanks for your reply. I already read the manual, but the script below doesn't work (I'm not using a form here yet).

$row = 1;
$fp = fopen ("test.csv", "r+") or die ("could not open file");
while ($data = fgetcsv ($fp, 1000, ","))
{
$num = count ($data);
print "<p> $num fields in row $row: <br>";
$row++;
for ($c=0; $c < $num; $c++) // for each form variable
{
fwrite($data[$c], "some new data"); // what's wrong here?
print $data[$c] . "<br>";
}
}
fclose ($fp);