The woes of a PHP form submission

[Martin the Mac Addict]

Good evening to the skilled Ladies and Gentlemen of the PHP world. I
am fairly new to all of this but learning quickly. I have run in to a
need to remove blank lines from a form submission after its sent back
to the web server for processing by a PHP document.

I have a textarea that users can paste lines of text in to and submit
them for inclusion in to a database. Every aspect is working
perfectly, except one. No matter what I try, I cannot get rid of
simple blank lines from the form submission.

$theLines = $HTTP_POST_VARS['userSubmitted'];

This variable ($theLines) now contains the contents from the textarea.
I have tried using ...

$theLines = explode("\n", $theLines);

and

$theLines = explode("\r", $theLines);

But all of the blank lines are still there. If anyone has some
snippet that they would share, I would be very grateful.

With great respect,

Martin

[hexkid]

Martin the Mac Addict wrote...
[...]

But all of the blank lines are still there. If anyone has some
snippet that they would share, I would be very grateful.

<?php
function remove_blank_lines($txt) {
str_replace("\r", '', $txt); ## remove all "\r"s
## and convert all double enters (and triple ...) to one enter
while (strpos($txt, "\n\n") !== false)
$txt = str_replace("\n\n", "\n", $txt);
return $txt;
}
?>

NOTE: this was typed into google without being checked.

[Nikolai Chuvakhin]

ad***@minoguetech.com (Martin the Mac Addict) wrote in message
news:<e4************************@posting.google.co m>...

I have a textarea that users can paste lines of text in to and submit
them for inclusion in to a database. Every aspect is working
perfectly, except one. No matter what I try, I cannot get rid of
simple blank lines from the form submission.

This may be somehow related to the end-of-line character issue.
End of line in DOS/Windows is a two-character sequence "\r\n",
in Unix, a single character "\n", and in MacOS, a single character
"\r". So if you want to strip end-of-line characters from a form
submission, you should try something like this:

$theLines = $HTTP_POST_VARS['userSubmitted'];
$theLines = str_replace("\n", '', $theLines);
$theLines = str_replace("\r", '', $theLines);

Also, take a look at the script you use to render the submission.
If you have something like this:

<textarea>
<?php
echo $theLines;
?>

</textarea>

then the extra blank line actually comes from your HTML, not your
PHP...

Cheers,
NC