File Checker-how To Check File Whith Html Through Html?

[mahirharoon 0]

edit:sorry for the mistake it is php not html
and its with not whith
my code checking script=

<?php$file = '$CHECK';if (file_exists($file)) {	echo "The file $filename exists";} else {	echo "The file $filename does not exist";}?>

my question is how to check the file whith html
example:on a page a text box is provided and a button
the user writes a file name (or website)
the user clicks on the submit button
then it checks and show it (with the code above)

i got the code

<?php$filename=$_POST['check'];if (file_exists($filename)) {	echo "The file $filename exists";} else {	echo "The file $filename does not exist";}?> <form method="post"><input name="check"><input type="submit" /></form>

but......
the problem is , it will first show
$_POST['check']
or
Notice: Undefined index: check in path\to\filecheck.php on line 2
The file does not exist
Edited December 15, 2007 by mahirharoon (see edit history)

[galexcd 0]

You can tell php to hide errors such as this if you put an at symbol (@) before the function returning the error.
i.e.

if(@file_exists($filename)){

[mahirharoon 0]

thanks alex the programmer
i used it for my project

<?php$filename=$_POST['check'];if (@file_exists($filename)) {	echo "The file $filename exists";} else {	echo "The file $filename does not exist , and the non existing file is created";		  fopen("$filename", "a+");}?> <form method="post"><input name="check"><input type="submit" /></form>

now it checks whether it i there and makes one if not existing
Edited December 22, 2007 by mahirharoon (see edit history)