pdf_setdash(3) php man page | unix.com

PDF_SETDASH(3)								 1							    PDF_SETDASH(3)

PDF_setdash - Set simple dash pattern

SYNOPSIS
       bool PDF_setdash (resource  $pdfdoc, float  $b, float  $w)

DESCRIPTION
	Sets the current dash pattern to $b black and $w white units. Returns TRUE on success or FALSE on failure.

PHP Documentation Group 													    PDF_SETDASH(3)