# fdf_create

(PHP 4, PHP 5, PHP 7)

fdf_create — Create a new FDF document

### 说明

fdf_create ( void ) : resource

Creates a new FDF document.

This function is needed if one would like to populate input fields in a PDF document with data.

### 返回值

Returns a FDF document handle, or `FALSE` on error.

### 范例

Example #1 Populating a PDF document

    <?php
    $outfdf = fdf_create();
    fdf_set_value($outfdf, "volume", $volume, 0);

    fdf_set_file($outfdf, "http:/testfdf/resultlabel.pdf");
    fdf_save($outfdf, "outtest.fdf");
    fdf_close($outfdf);
    Header("Content-type: application/vnd.fdf");
    $fp = fopen("outtest.fdf", "r");
    fpassthru($fp);
    unlink("outtest.fdf");
    ?>

### 参见

- fdf_close() - Close an FDF document
- fdf_save() - Save a FDF document
- fdf_open() - Open a FDF document