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fdf_next_field_name

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

fdf_next_field_name -- Get the next field name

说明

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.

参数

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.

返回值

Returns the field name as a string.

范例

例 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";
}
?>

参见

fdf_get_value()



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