fdf_next_field_name

(PHP 4, PHP 5, PHP 7)

Get the next field name

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.

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.

Returns:

Returns the field name as a string.

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";
}
?>