Hi currently I built have function to create a thumbnail from an image and it does so, however I want it to be a circle thumbnail not a rectangle, how can I achieve this without using any external libraries just php built in methods? thank you
function createThumb( $imagepath, $thumbFile, $thumbWidth )
{
// load image and get image size
$img = imagecreatefromjpeg( "$imagepath" );
$width = imagesx( $img );
$height = imagesy( $img );
// calculate thumbnail size
$new_width = $thumbWidth;
$new_height = floor( $height * ( $thumbWidth / $width ) );
// create a new temporary image
$tmp_img = imagecreatetruecolor( $new_width, $new_height );
// copy and resize old image into new image
imagecopyresized( $tmp_img, $img, 0, 0, 0, 0,
$new_width, $new_height, $width, $height );
// save thumbnail into a file in the temp directory below script or somewhere
imagejpeg( $tmp_img, $thumbFile );
}