Developer Forums | About Us | Site Map
Search  
HOME > PHPMANUAL


Sponsors





Web Host
site hosted by netplex
Partners

Online Manuals

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().

Copyright 2004-2017 GrindingGears.com. All rights reserved. Site hosted by NETPLEX