(PECL ps >= 1.1.0)
ps_setfont — Sets font to use for following output
$psdoc
, int $fontid
, float $size
) : boolSets a font, which has to be loaded before with ps_findfont(). Outputting text without setting a font results in an error.
psdocResource identifier of the postscript file as returned by ps_new().
fontidThe font identifier as returned by ps_findfont().
sizeThe size of the font.
成功时返回 true， 或者在失败时返回 false。