Draw a character vertically
Syntax
imagecharup(
GdImage $image,
GdFont|int $font,
int $x,
int $y,
string $char,
int $color
): boolParameters
imageA GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor().
fontCan be 1, 2, 3, 4, 5 for built-in fonts in latin2 encoding (where higher numbers corresponding to larger fonts) or GdFont instance, returned by imageloadfont().
xx-coordinate of the start.
yy-coordinate of the start.
charThe character to draw.
colorA color identifier created with imagecolorallocate().
Return
Returns true on success or false on failure.
Examples
1 · return
<? $width = 100; $height = 100; $image = imagecreatetruecolor($width, $height); $red = 0; $green = 0; $blue = 0; $color = imagecolorallocate($image, $red, $green, $blue); $font = 1; $x = 0; $y = 100; $char = "c"; $return = imagecharup($image, $font, $x, $y, $char, $color); var_export($return); ?>
true
2 · base64
<?
$width = 100;
$height = 100;
$image = imagecreatetruecolor($width, $height);
$red = 255;
$green = 255;
$blue = 255;
$color = imagecolorallocate($image, $red, $green, $blue);
$font = 1;
$x = 0;
$y = 100;
$char = "c";
imagecharup($image, $font, $x, $y, $char, $color);
ob_start();
imagepng($image);
$output = ob_get_clean();
echo '<!doctype html>
<html>
<body>
<img src="data:image/png;base64,' . base64_encode($output) . '">
</body>
</html>';
?><!doctype html>
<html>
<body>
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAIAAAD/gAIDAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARUlEQVR4nO3QoQ0AMAwDwSj77+zwsJZUle7QQ8tVAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFxIsoKlXw/4ibMODDYQBf8lvpKjAAAAAElFTkSuQmCC">
</body>
</html>
