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imagesetpixel

PHP function Edit on GitHub ✎

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

Set a single pixel

Description

imagesetpixel(GdImage $image, int $x, int $y, int $color): true

imagesetpixel() draws a pixel at the specified coordinate.

Parameters

x: x-coordinate.
y: y-coordinate.
color: Color

Return Values

Always

Changelog

Version	Description

Examples

imagesetpixel() example

A random drawing that ends with a regular picture.

php

<?php

$x = 200;
$y = 200;

$gd = imagecreatetruecolor($x, $y);
 
$corners[0] = array('x' => 100, 'y' =>  10);
$corners[1] = array('x' =>   0, 'y' => 190);
$corners[2] = array('x' => 200, 'y' => 190);

$red = imagecolorallocate($gd, 255, 0, 0); 

for ($i = 0; $i < 100000; $i++) {
  imagesetpixel($gd, round($x), round($y), $red);
  $a = rand(0, 2);
  $x = ($x + $corners[$a]['x']) / 2;
  $y = ($y + $corners[$a]['y']) / 2;
}
 
header('Content-Type: image/png');
imagepng($gd);

?>

The above example will output something similar to: Output of example : imagesetpixel()