pdf_stringwidth
Description
float pdf_stringwidth ( resource pdfdoc, string text, int font, float size )Returns the width of text using the last font set by pdf_setfont(). If the optional parameters font and size are specified, the width will be calculated using that font and size instead. Please note that font is a font handle returned by pdf_findfont(). Parameters font and size were optional before PHP 5.
注: Both the font and size parameters must be used together.
See also pdf_setfont() and pdf_findfont().