(PECL pdflib >= 2.0.0) Get name of unsuccessfull API function

(PECL haru >= 0.0.1) Get the current filling color

(PHP 4, PECL pdflib >= 1.0.0) Draw a counterclockwise circular arc segment

(PECL haru >= 0.0.1) Append an ellipse to the current path

(PECL gnupg >= 0.1) Toggle armored output

(PECL ps >= 1.1.0) Draws a line bool ps_lineto

(PHP 4, PECL pdflib >= 1.0.0) Font handling [deprecated]

(PHP 4, PECL pdflib >= 1.0.0) Set border color of annotations [deprecated]

(PHP 5 <= 5.3.0, PECL ming SVN) Returns the bitmap's width

(PHP 5 <= 5.3.0, PECL ming SVN) Returns the leading of the current font at its current size, or 0 if not