If width = 0, the annotation borders will be invisible.
(PHP 4, PECL pdflib >= 1.0.0)
PDF_set_border_style — Set border style of annotations [deprecated]
$pdfdoc
, string $style
, float $width
) : bool
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.
If width = 0, the annotation borders will be invisible.