pdf_concat(3) php man page | unix.com

PDF_CONCAT(3)								 1							     PDF_CONCAT(3)

PDF_concat - Concatenate a matrix to the CTM

SYNOPSIS
       bool PDF_concat (resource  $p, float  $a, float	$b, float  $c, float  $d, float  $e, float  $f)

DESCRIPTION
	Concatenates a matrix to the current transformation matrix (CTM). Returns TRUE on success or FALSE on failure.

PHP Documentation Group 													     PDF_CONCAT(3)