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# imagecolorsforindex

(PHP 3, PHP 4, PHP 5)

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.

範例 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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