imagecolorclosestalpha

Supported Versions: PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8
Get the index of the closest color to the specified color + alpha
imagecolorclosestalpha(¬†¬†¬†¬†GdImage $image,¬†¬†¬†¬†int $red,¬†¬†¬†¬†int $green,¬†¬†¬†¬†int $blue,¬†¬†¬†¬†int $alpha): int