ps_open_file

(PECL ps >= 1.1.0)

ps_open_file — Opens a file for output

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.

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.

成功时返回 true，或者在失败时返回 false。

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