This example shows how to make transparent image in php gd.
This example shows how to make transparent image in php gd.<?php
$im = imagecreatetruecolor(55, 30);
$red = imagecolorallocate($im, 255, 0, 0);
$black = imagecolorallocate($im, 0, 0, 0);
imagecolortransparent($im, $black);
imagefilledrectangle($im, 4, 4, 50, 25, $red);
imagepng($im, './imagecolortransparent.png');
imagedestroy($im);
echo("Transparent image created and saved successfully.");
?>
After running the program you will get the following output