fdf_next_field_name

Get the next field name

&reftitle.description; `string` `fdf_next_field_name` `resource` `fdf_document` `string` `fieldname`

Gets the name of the field after the given field. This name can be used with several functions.

&reftitle.parameters;

`fdf_document`

- The FDF document handle, returned by `fdf_create`, `fdf_open` or `fdf_open_string`.

`fieldname`

- Name of the FDF field, as a string. If not given, the first field will be assumed.

&reftitle.returnvalues;

Returns the field name as a string.

&reftitle.examples;

### Detecting all fieldnames in a FDF

    <?php
    $fdf = fdf_open($HTTP_FDF_DATA);
    for ($field = fdf_next_field_name($fdf);
        $field != "";
        $field = fdf_next_field_name($fdf, $field)) {
        echo "field: $field\n";
    }
    ?>

&reftitle.seealso;

- `fdf_get_value`