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imagecolorsforindex
Get the colors for an index
(PHP 4, PHP 5)
array imagecolorsforindex ( resource image, int 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 993. 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() |