(PECL ps >= 1.1.0)
ps_setlinewidth — Sets width of a line
$psdoc
$width
Sets the line width for all following drawing operations.
psdoc
Resource identifier of the postscript file as returned by ps_new().
width
The width of lines in points.
成功时返回 true， 或者在失败时返回 false。
true
false
