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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.
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 ); '</pre>' ; ?>
This example will output :
Array
(
[red] => 226
[green] => 222
[blue] => 252
[alpha] => 0
)
See also imagecolorat() imagecolorexact()
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