fdf_next_field_name
(PHP 4, PHP 5)
fdf_next_field_name — Get the next field name
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.
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.
 
Return Values
Returns the field name as a string.
Παραδείγματα
Example#1 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";
}
?>