imagecolorat
Returns the index of the color of the pixel at the specified location in the image specified by image.
If the image is a truecolor image, this function returns the RGB value of that pixel as integer. Use bitshifting and masking to access the distinct red, green and blue component values:
Parameters
- image
A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor.
- x
-
x-coordinate of the point.
- y
-
y-coordinate of the point.
Return Values
Returns the index of the color or false on failure.
Warning:
This function may return Boolean false, but may also return a non-Boolean value which evaluates to false. Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.
Changelog
| Version | Description |
| 8.0.0 | image expects a GdImage instance now; previously, a resource was expected. |