(PHP 4 >= 4.3.3)
SWFMovie::saveToFile —
$x
   [, int $compression = -1
  ] )本函数还未编写文档,仅有参数列表。
X
     
compression
     The compression level can be a value between 0 and 9, defining the SWF compression similar to gzip compression.
This parameter is only available as of Flash MX (6).
   Return the number of bytes written or FALSE on error.