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imagecharup

Description

The imagecharup of Image for PHP draw a character vertically.

Syntax

imagecharup(
    GdImage $image,
    GdFont|int $font,
    int $x,
    int $y,
    string $char,
    int $color
): bool

Parameters

image

A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor().

font

Can 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().

x

x-coordinate of the start.

y

y-coordinate of the start.

char

The character to draw.

color

A 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>