convertir la imagen PNG transparente en WebP PHP
// get png in question
$pngimg = imagecreatefrompng($file);
// get dimens of image
$w = imagesx($pngimg);
$h = imagesy($pngimg);;
// create a canvas
$im = imagecreatetruecolor ($w, $h);
imageAlphaBlending($im, false);
imageSaveAlpha($im, true);
// By default, the canvas is black, so make it transparent
$trans = imagecolorallocatealpha($im, 0, 0, 0, 127);
imagefilledrectangle($im, 0, 0, $w - 1, $h - 1, $trans);
// copy png to canvas
imagecopy($im, $pngimg, 0, 0, 0, 0, $w, $h);
// lastly, save canvas as a webp
imagewebp($im, str_replace('png', 'webp', $file));
// done
imagedestroy($im);
Rayyan Symits