Sunday, March 22, 2020

Convert HEX color to RGB values in PHP

Question:

What would be a good way to convert hex color values like #ffffff into the single RGB values 255 255 255 using PHP?

Solution:

Example 1:

Check out PHP's hexdec() and dechex() functions.

<?php
$value = hexdec('ff'); // $value = 255
?>

Example 2:

If you want to convert hex to rgb you can use sscanf.

<?php
$hex = "#ff9900";
list($r, $g, $b) = sscanf($hex, "#%02x%02x%02x");
echo "$hex -> $r $g $b"; // #ff9900 -> 255 153 0
?>

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