Set pixel in PHP
Description
The following code shows how to set pixel.
Example
<?php/* www. j ava 2s . c o m*/
$width = 255;
$height = 255;
$image = imagecreatetruecolor($width, $height);
for ($i = 0; $i <= $width; ++$i) {
for ($j = 0; $j <= $height; ++$j) {
$col = imagecolorallocate($image, 255, $i, $j);
imagesetpixel($image, $i, $j, $col);
}
}
header("Content-type: image/png");
imagepng($image);
imagedestroy($image);
?>
The code above generates the following result.
