What does this PHP code do?

[atlkhan]

Can someone please explain this php code. I would be grateful

<?php
// --------------- file tape2matlab2php.php
 
// NOTE: if web-server and matlab server are NOT located on the same mashine please use share name.
 
$path_data ="\MB_data\Field_Signals\";
$path_out_file ="MB_dataout";
$path_descr ="MB_datadesc";
$path_MB_def ="MB_dataMB_def";
$path_HDF ="MB_dataout";
 
?>
 
 
 
 
<?php
 
if (!isset($mode)) {
$mode="init";
}
switch ($mode) {
case 'init':
include('inc_init_page.php');
break;
case 'run':
?>
<form action="/cgi-bin/matweb.exe" method="POST">
<input type="hidden" name="mlmfile" value="Tape2coord">
<input type="hidden" name="dfname" value=" <?PHP echo $dfname ?>" >
<input type="hidden" name="path_descr" value=" <?PHP echo $path_descr ?>" >
<input type="hidden" name="path_data" value=" <?PHP echo $path_data ?>" >
<input type="hidden" name="path_out_file" value=" <?PHP echo $path_out_file ?>" >
<input type="hidden" name="path_HDF" value=" <?PHP echo $path_HDF ?>" >
<p><input type="submit" name="Submit" value="Execute"></p>
</form>
<?PHP
break;
default:
echo "End'";
break;
}
?>
</BODY>

[Please use CODE tags when posting source code. Thanks! --pbmods]

[pbmods]

Which part of it did you want to learn more about?

[atlkhan]

Which part of it did you want to learn more about?

Mostly the part where form inputs are given and what is going on in the swithc case statement.

Also, is it possible if I run this php script on my webserver . Where I am passing some inputs from the flash and this script pass those inputs to the matweb.exe program as its doing in this case.( My point is does it require any user interaction)