(PHP 4, PHP 5)
imagecolorresolve — Get the index of the specified color or its closest possible alternative
( resource $image
, int $red
, int $green
, int $blue
If you created the image from a file, only colors used in the image are
resolved. Colors present only in the pallete are not resolved.
An image resource, returned by one of the image creation functions,
such as imagecreatetruecolor().
Value of red component.
Value of green component.
Value of blue component.
Returns a color index.