(PECL ps >= 1.3.0)
ps_shading_pattern — Creates a pattern based on a shading
$psdoc
   , int $shadingid
   , string $optlist
   )Creates a pattern based on a shading, which has to be created before with ps_shading(). Shading patterns can be used like regular patterns.
psdoc
     Resource identifier of the postscript file as returned by ps_new().
shadingid
     The identifier of a shading previously created with ps_shading().
optlist
     This argument is not currently used.
   The identifier of the pattern  or FALSE on failure.