RGB Colors to #XXXXXX with PHP?

[globay]

I want to use a color which is

Red: 100
Blue: 100
Yellow: 100
(#646464)

How could I convert this to HTML colors( by using PHP)?

--
globay

[jatar_k]

$colour = "646464";
echo "#" . $colour or <?= $colour?>

is this what you mean?

[globay]

No, I meant something different:

Red: 50 -> 32 (Hexadecimal)
Green: 100 -> 64
Blue: 200 -> C8

-> #3264C8

Basically it is how to transform 100 (dezimal) to 100 (Hexadecimal).

--
thanks;
globay

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<Added> Just found the solution! dechex( )</added>

[Nick_W]

$hex=dechex($dec); [php.net]

Nick

[andreasfriedrich]

Use either dechex() [php.net] to convert each decimal number to its hexadecimal representation or use sprintf() [php.net] to get the color string like this:

$color = sprintf("#%x%x%x", 100, 100, 100); 

$color will contain the string #646464

Andreas

[globay]

thanks,

sprintf() will make it even easier!

[jatar_k]

sorry globay, I had no idea what you meant.

Those functions are the way to go.