PHP fdf_next_field_name function

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fdf_next_field_name

(PHP 3 >= 3.0.6, PHP 4, PHP 5)

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

The FDF document handle, returned by fdf_create(),
fdf_open() or fdf_open_string().

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

Returns the field name as a string.

Example 1. Detecting all fieldnames in a FDF

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