The imagecolorsforindex() function gets the colors for an index.
Syntax
imagecolorsforindex ( img, index )
Parameters
img: Creates an image with imagecreatetruecolor()
Index: Set the color index.
Return
The imagecolorsforindex() function returns an associative array with red, green, blue and alpha keys that contain the appropriate values for the specified color index.
Example
The following is an example
<?php
$img = imagecreatefrompng('https://www.tutorialspoint.com/images/tp-logo-diamond.png');
$x = 25;
$y = 45;
$rgb = imagecolorat($img, 25, 45);
$colors = imagecolorsforindex($img, $rgb);
var_dump($colors);
?>Output
The following is the output:
array(4) { ["red"]=> int(255) ["green"]=> int(255) ["blue"]=> int(255) ["alpha"]=> int(127) }