(PHP 4, PECL pdflib >= 1.0.0)
PDF_set_border_style — Set border style of annotations [deprecated]
Sets the border style for all kinds of annotations. 成功时返回 TRUE, 或者在失败时返回 FALSE.
This function is deprecated since PDFlib version 6, use the options borderstyle and linewidth in PDF_create_annotation() instead.