   #PHP Manual Image functions imagecolorset imagecolorstotal

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                              imagecolorsforindex

   (PHP 3, PHP 4 )
   imagecolorsforindex -- Get the colors for an index

Description

   array imagecolorsforindex ( resource image, int index)

   This returns an associative array with red, green, blue and alpha keys
   that contain the appropriate values for the specified color index.

   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, $color_index);
   // what is it ?
   echo '<pre>';
   print_r($color_tran);
   echo '</pre>';
   ?>

   This example will output :
Array
(
    [red] => 226
    [green] => 222
    [blue] => 252
    [alpha] => 0
)

   See also imagecolorat() and imagecolorexact().
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