imageloadfont Load a new font intimageloadfont stringfile imageloadfont loads a user-defined bitmap font and returns an identifier for the font (that is always greater than 5, so it will not conflict with the built-in fonts). The font file format is currently binary and architecture dependent. This means you should generate the font files on the same type of CPU as the machine you are running PHP on. byte position C data type description byte 0-3 int number of characters in the font byte 4-7 int value of first character in the font (often 32 for space) byte 8-11 int pixel width of each character byte 12-15 int pixel height of each character byte 16- char array with character data, one byte per pixel in each character, for a total of (nchars*width*height) bytes. See also imagefontwidth and imagefontheight.