PHP - Manual: PDF_set_border_color
2025-11-01
(PHP 4, PECL pdflib >= 1.0.0)
PDF_set_border_color — Set border color of annotations [deprecated]
$p
    , float $red
    , float $green
    , float $blue
    ) : bool
   Sets the border color 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 option annotcolor in
   PDF_create_annotation() instead.
  
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  官方地址:https://www.php.net/manual/en/function.pdf-set-border-color.php