imagecolorsforindex

(PHP 3, PHP 4, PHP 5)

imagecolorsforindex -- Get the colors for an index

Description

array imagecolorsforindex ( resource image, int index )

Gets the color for a specified index.

Parameters

image

An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().

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()
imagecolorexact()


Follow phpf1 on Twitter


F1 Site Family
AJAX F1
CSS F1
Database F1
Flash F1
HTML F1
Java F1
JavaScript F1
PhotoShop F1
PHP F1
Scripts F1
Tutorial F1
Windows F1

Total time: 0.0324