(PHP 4, PHP 5, PHP 7, PHP 8)
imagecolorsforindex — Get the colors for an index
Gets the color for a specified index.
image
A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor().
color
The color index.
Returns an associative array with red, green, blue and alpha keys that
contain the appropriate values for the specified color index,
or false
on failure.
Version | Description |
---|---|
8.0.0 |
image expects a GdImage
instance now; previously, a resource was expected.
|
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 )