gzipping textarea content with php

[hugoboss]

Im about 80% through an application that im constructing that downloads/decompress/decodes xml.gz files the fly files from my server and shows the output in a textarea for editing all this part works perfect,

but heres my stumbling block:

After editing i then need to encode/gzcompress the textarea contents by php and have the file offered up for downloading (without the page changing) so my problems are

1) how to re-encode/gzcompress the edited text
2) how to offer up for downloading

heres the code i have upto yet which displays the xml

<textarea rows="30" name="rawxml" cols="111" class="outputs" >
<?php
$fh = fopen("datafeed.xml", "r");

$file = file_get_contents("datafeed.xml");
echo $file;
?>
</textarea>
<?php
$content = file_get_contents("$file");
        $coded = base64_encode(gzcompress("$file"));
?>
<p align="center">
<input name="submit" type="submit" value="encode xml" />
</p>
</form>

Im pretty un-experienced in .php (amazed myself i got this far actually) but could do with some pointers for this..thanks

[katierosy]

Yes you may or may not write more to make this script workable. You can certainly add php header for downloading the file as gzip format.