Untitled

<html>

// other code

<form action="process.php" method="post">
    <table>
        <tr><input name="comp1" type="text" /></tr>
        <tr><input name="comp2" type="text" /></tr>

        // until

        <tr><input name="comp50" type="text" /></tr>

        <tr><input name="addColumn" type="text" /></tr>
    </table>
</form>

<input name="addedColumn1A" type="text" />