imagecharup
(PHP 3, PHP 4, PHP 5)
imagecharup -- Draw a character vertically
Description
bool
imagecharup ( resource image, int font, int x, int y, string c, int color )
Draws the character c vertically at the specified
coordinate on the given image.
Parameters
imageAn image resource, returned by one of the image creation functions,
such as imagecreatetruecolor().
fontCan be 1, 2, 3, 4, 5 for built-in
fonts (where higher numbers corresponding to larger fonts) or any of your
own font identifiers registered with imageloadfont().
x
x-coordinate of the start
y
y-coordinate of the start
c
The character to draw
color
A color identifier created with
imagecolorallocate()
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example 1. imagecharup() example
<?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);
// prints a black "Z" on a white background
imagecharup($im, 3, 10, 10, $string, $black);
header('Content-type: image/png');
imagepng($im);
?>
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The above example will output
something similar to: 
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