deleting text files

[infinitium]

say guys.. i have a code that inputs text to a text file:

// write to file
                $textfile = fopen ("C:/instructions.txt", "w+");
                fwrite($textfile, $fp);
                fclose ($textfile); 
                echo "<P><B>Your instructions have been updated into the database!</B></P>"; 

Now, how do I have a command that deletes this text file, or at least flushes/erases the text back to NULL?

[Dr Gonzo]

You can use the unlink() function.
Here is an example I lifted from the PHP manual:
<?php
$delete = unlink("C:\\directory\\filename.extension");
if($delete){
echo "Succesfully deleted";
}else{
echo "Could not delete";
}
?>
You can fine more examples here:
http://www.php.net/manual/en/function.unlink.php

Hope this helps

Stuart

[infinitium]

cool.. thanks!

[infinitium]

hmmm.. how about i don't want to delete the file... but simply to erase the file's contents?

I tried using

$textfile = fopen ("C:/instructions.txt", "w+"); 

but it seems you need to type in stuff to overwrite it, instead of erasing the contents straightout....

[exbabylon]

Try this:

$textfile = fopen ("C:/instructions.txt", "w");
fwrite("", $fp);
fclose ($textfile); 

[infinitium]

yeah.. this idea hit me too before i got the mail notification...

thanks anyway!