if you use the following method in your form:
<input type=text value='inputONE' name='myarray[]'>
<input type=text value='inputTWO' name='myarray[]'>
etc.
You would $_POST an array that PHP would reference as $myarray
You could then get
$arraysize=count($myarray);
and set up a for or while loop --
or do a foreach loop
foreach($myarray as $key=>$value) {//do something here}
The values of $myarray[0], $myarray[1]...etc will the values as entered in the form in the order they were stated. In the case I showed above, $myarray[0] would be 'inputONE', $myarray[1] would be 'inputTWO'
If you have a field that wants to be included, say in a SQL statement, but not made available for editing you can pass it as a hidden value
<input type=hidden value='InputTHREE' name='myarray[]'>.
Hope this clarifies what dalescop was telling you.