(PHP 4, PHP 5)
imagecolorexact — Get the index of the specified color
Returns the index of the specified color in the palette of the image.
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.
내장 글꼴 1, 2, 3, 4, 5(큰 숫자가 큰 글꼴)나 imageloadfont()로 등록한 글꼴 식별자를 사용할 수 있습니다.
Value of red component
Value of green component
Value of blue component
Returns the index of the specified color in the palette, or -1 if the color does not exist.