https://www.php.net/manual/pt_BR/function.imagecreatefromgd.php
PHP: imagecreatefromgd - Manual
Cria uma nova imagem a partir de um arquivo GD ou URL
phpmanual
https://www.php.net/manual/en/function.imagecreatefromgd.php
PHP: imagecreatefromgd - Manual
Create a new image from GD file or URL
phpmanual