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PHP

Get the colors for an index


imagecolorsforindex

(PHP 4, PHP 5)

imagecolorsforindexGet 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

The color 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



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