(PECL ps >= 1.1.0)
ps_add_weblink — Adds link to a web location
Places a hyperlink at the given position pointing to a web page. The
hyperlink's source position is a rectangle with its lower left corner at
(llx, lly) and
its upper right corner at (urx,
ury). The rectangle has by default a thin
blue border.
此说明在文档被打印或显示时不可见，只在文档用 Acrobat Distiller 或 Ghostview 转换成 PDF 时显示。
psdocResource identifier of the postscript file as returned by ps_new().
llxThe x-coordinate of the lower left corner.
llyThe y-coordinate of the lower left corner.
urxThe x-coordinate of the upper right corner.
uryThe y-coordinate of the upper right corner.
url
The url of the hyperlink to be opened when clicking on
this link, e.g. http://www.php.net.