(PHP 4, PECL pdflib:1.0-2.1.3)
PDF_add_weblink — Add weblink for current page [deprecated]
Adds a weblink annotation to a target url on the Web. 如果成功则返回 TRUE,失败则返回 FALSE。
This function is deprecated since PDFlib version 6, use PDF_create_action() with type=URI and PDF_create_annotation() with type=Link instead.