imageloadfont · Image · PHP

Load a new font

Syntax

imageloadfont(
    string $filename
): GdFont|false

Parameters

filename

The font file format is currently binary and architecture dependent. This means you should generate the font files on the same type of CPU as the machine you are running PHP on.

Byte Position	Type	Description
byte 0-3	int	number of characters in the font
byte 4-7	int	value of first character in the font (often 32 for space)
byte 8-11	int	pixel width of each character
byte 12-15	int	pixel height of each character
byte 16-	char	array with character data, one byte per pixel in each character, for a total of (ncharswidthheight) bytes.

Return

Returns an GdFont instance, or false on failure.

Examples

1 · return

<?

$filename = $_SERVER['DOCUMENT_ROOT'] . '/assets/gdf/1.gdf';

$return = imageloadfont($filename);

var_dump($return);

?>

object(GdFont)#1 (0) {
}

2 · base64

<?

$width = 100;
$height = 100;
$image = imagecreatetruecolor($width, $height);

$red = 255;
$green = 255;
$blue = 255;
$color = imagecolorallocate($image, $red, $green, $blue);

$filename = $_SERVER['DOCUMENT_ROOT'] . '/assets/gdf/1.gdf';
$font = imageloadfont($filename);

$x = 0;
$y = 0;
$string = "string";
imagestring($image, $font, $x, $y, $string, $color);

$filename = $_SERVER['DOCUMENT_ROOT'] . '/assets/gdf/2.gdf';
$font = imageloadfont($filename);

$x = 0;
$y = 20;
$string = "string";
imagestring($image, $font, $x, $y, $string, $color);

$filename = $_SERVER['DOCUMENT_ROOT'] . '/assets/gdf/3.gdf';
$font = imageloadfont($filename);

$x = 0;
$y = 40;
$string = "string";
imagestring($image, $font, $x, $y, $string, $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,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">
</body>
</html>