imagechar() draws the first character of c in the image identified by image with its upper-left at x,y (top left is 0, 0) with the color color.
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
Can be 1, 2, 3, 4, 5 for built-in fonts in latin2 encoding (where higher numbers corresponding to larger fonts) or any of your own font identifiers registered with imageloadfont().
x-coordinate of the start
y-coordinate of the start
The character to draw
A color identifier created with imagecolorallocate()
$im = imagecreate(100, 100);
$string = 'PHP';
$bg = imagecolorallocate($im, 255, 255, 255);
$black = imagecolorallocate($im, 0, 0, 0);
// prints a black "P" in the top left corner
imagechar($im, 1, 0, 0, $string, $black);
The above example will output something similar to: