imagecolorresolvealpha
(PHP 4 >= 4.0.6, PHP 5)
imagecolorresolvealpha — Get the index of the specified color + alpha or its closest possible alternative
Description
int imagecolorresolvealpha
( resource $image
, int $red
, int $green
, int $blue
, int $alpha
)
This function is guaranteed to return a color index for a requested color, either the exact color or the closest possible alternative.
Parameters
- image
-
An image resource, 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
- alpha
-
A value between 0 and 127. 0 indicates completely opaque while 127 indicates completely transparent.
Return Values
Returns a color index.
Notes
Note: This function requires GD 2.0.1 or later (2.0.28 or later is recommended).