imagecharup

(PHP 4, PHP 5, PHP 7, PHP 8)

imagecharup — Draw a character vertically

Description

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

Draws the character char vertically at the specified coordinate on the given image.

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 Values

Returns true on success or false on failure.

Changelog

Version	Description
8.1.0	The `font` parameter now accepts both an GdFont instance and an int; previously only int was accepted.
8.0.0	`image` expects a GdImage instance now; previously, a valid `gd` resource was expected.

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);

?>

The above example will output something similar to:

User Contributed Notes 1 note

down

-4

php at corzoogle dot com ¶

19 years ago


<?php
// incredibly, no one has added this.
// write a string of text vertically on an image..
// ;o)

$string = '(c) corz.org';
$font_size = 2;
$img = imagecreate(20,90);
$bg = imagecolorallocate($img,225,225,225);
$black = imagecolorallocate($img,0,0,0);

$len = strlen($string);
for ($i=1; $i<=$len; $i++) {
    imagecharup($img, $font_size, 5, imagesy($img)-($i*imagefontwidth($font_size)), $string, $black);
    $string = substr($string,1);
}
header('Content-type: image/png');
imagepng($img);
imagedestroy($img); // dudes! don't forget this!
?>

add a note