php教程

fdf_save

(PHP 4, PHP 5, PHP 7)

fdf_saveSave 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

User Contributed Notes

karsten at k-fish dot de 11-Apr-2003 10:18
The doc says that an empty file name will cause PHP to output the FDF to 'stdout'. I had no success on this (with PHP 4.2.3 and fdftk v5): no string, an empty string and null all returned a message complaining about 'wrong parameter count'.

So I used the way (saving to a file and using passthru) given as an example on the page describing fdf_create(), and added a uniqid(rand(),1) to the filename to avoid clashes. This worked well.

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