imagecharup — Draw a character vertically.
bool imagecharup ( resource $image , int $font , int $x , int $y , string $c , int $color )
imagecharup() draws character c vertically on the image specified by image, located at x, y (the upper left corner of the image is 0, 0), and the color is color. If font is 1, 2, 3, 4 or 5, the built-in font is used.
<?php$im = imagecreate(100,100);$string = 'Note that the first letter is a N';$bg = imagecolorallocate($im, 255, 255, 255);$black = imagecolorallocate($im, 0, 0, 0);// Output black "Z" imagecharup($im, 3, 10, 10, on a white background $string, $black);header('Content-type: image/png');imagepng($im);?>The picture of the output result of the above example is as follows:
imagechar() draws a character horizontally.
imageloadfont() loads a new font.