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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.4 $ -->
<!-- splitted from ./en/functions/image.xml, last change in rev 1.36 -->
<refentry id="function.imagecolorsforindex">
<refnamediv>
<refname>imagecolorsforindex</refname>
<refpurpose>Get the colors for an index</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>array</type><methodname>imagecolorsforindex</methodname>
<methodparam><type>resource</type><parameter>image</parameter></methodparam>
<methodparam><type>int</type><parameter>index</parameter></methodparam>
</methodsynopsis>
<para>
This returns an associative array with red, green, blue and alpha
keys that contain the appropriate values for the specified color
index.
</para>
<para>
<example>
<title><function>imagecolorsforindex</function> example</title>
<programlisting role="php">
<![CDATA[
<?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);
echo '</pre>';
?>
]]>
</programlisting>
<para>
This example will output :
</para>
<screen>
<![CDATA[
Array
(
[red] => 226
[green] => 222
[blue] => 252
[alpha] => 0
)
]]>
</screen>
</example>
</para>
<para>
See also <function>imagecolorat</function> and
<function>imagecolorexact</function>.
</para>
</refsect1>
</refentry>
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