imagecolorexact
PHP 4, PHP 5, PHP 7, PHP 8
imagecolorexact - Get the index of the specified color
Manual
imagecolorexact(
GdImage$image,
int$red,
int$green,
int$blue ): int
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 palette are not resolved.
Parameters
- image
A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor.
- red
-
Value of red component.
- green
-
Value of green component.
- blue
-
Value of blue component.
Return Values
Returns the index of the specified color in the palette, or -1 if the color does not exist.
Changelog
| Version | Description |
| 8.0.0 | image expects a GdImage instance now; previously, a resource was expected. |