Sets FDF character encoding

# fdf_set_encoding

(PHP 4 >= 4.0.7, PHP 5 < 5.3.0, PECL fdf SVN)

fdf_set_encoding — Sets FDF character encoding

### 说明

function fdf_set_encoding(resource `$fdf_document`, string `$encoding`): bool

Sets the character encoding for the FDF document.

### 参数

`fdf_document`
  The FDF document handle, returned by fdf_create(), fdf_open() or fdf_open_string().
`encoding`
  The encoding name. The following values are supported: "`Shift-JIS`", "`UHC`", "`GBK`" and "`BigFive`". An empty string resets the encoding to the default `PDFDocEncoding/Unicode` scheme.

### 返回值

成功时返回 `true`， 或者在失败时返回 `false`。

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