# fdf_save

(PHP 4, PHP 5 < 5.3.0, PECL fdf SVN)

fdf_save — Save a FDF document

### 说明

fdf_save(resource `$fdf_document`, string `$filename` = ?): bool

Saves a FDF document.

### 参数

`fdf_document`
  The FDF document handle, returned by fdf_create(), fdf_open() or fdf_open_string().
`filename`
  If provided, the resulting FDF will be written in this parameter. Otherwise, this function will write the FDF to the default PHP output stream.

### 返回值

成功时返回 `true`， 或者在失败时返回 `false`。

### 参见

- fdf_close() - Close an FDF document
- fdf_create() - Create a new FDF document
- fdf_save_string() - Returns the FDF document as a string

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