(PECL ps >= 1.2.0)
ps_symbol — Output a glyph
$psdoc, int $ord): bool
Output the glyph at position ord in the font
encoding vector of the current font. The font encoding for a font can be
set when loading the font with ps_findfont().
psdocResource identifier of the postscript file as returned by ps_new().
ordThe position of the glyph in the font encoding vector.
成功时返回 true， 或者在失败时返回 false。