Php/docs/function.imagecolorsforindex
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imagecolorsforindex
(PHP 4, PHP 5, PHP 7)
imagecolorsforindex — Get the colors for an index
Description
imagecolorsforindex
( resource $image
, int $index
) : array
Gets the color for a specified index.
Parameters
image
- An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
index
- The color index.
Return Values
Returns an associative array with red, green, blue and alpha keys that contain the appropriate values for the specified color index.
Examples
Example #1 imagecolorsforindex() example
<?php// open an image$im = imagecreatefrompng('nexen.png');// get a color$start_x = 40;$start_y = 50;$color_index = imagecolorat($im, $start_x, $start_y);// make it human readable$color_tran = imagecolorsforindex($im, $color_index);// what is it ?print_r($color_tran);?>
The above example will output something similar to:
Array ( [red] => 226 [green] => 222 [blue] => 252 [alpha] => 0 )
See Also
- imagecolorat() - Get the index of the color of a pixel
- imagecolorexact() - Get the index of the specified color