# ps_open_file

(PECL ps >= 1.1.0)

ps_open_file — Opens a file for output

### 说明

ps_open_file(resource `$psdoc`, string `$filename` = ?): bool

Creates a new file on disk and writes the PostScript document into it. The file will be closed when ps_close() is called.

### 参数

`psdoc`

  Resource identifier of the postscript file as returned by ps_new().

`filename`

  The name of the postscript file. If `filename` is not passed the document will be created in memory and all output will go straight to the browser.

### 返回值

成功时返回 `true`， 或者在失败时返回 `false`。

### 参见

- ps_close() - Closes a PostScript document

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