colorfields.php

<?php

/**
 * Colorfields plugin for Adminer.
 *
 * @link https://github.com/smuuf/adminer-colorfields
 * @author Premysl Karbula, http://www.premyslkarbula.cz
 */

class AdminerColorfields {

	public static $template = '%s<span style="margin-left: 1ex; vertical-align: middle; display: inline-block; width: 1em; height: 1em; border-radius: 50%%; background-color: %s;"></span>';

	public function selectVal(&$val, $link, $field, $original) {

		$trimmed = trim($val);

		if (self::isHex($trimmed) || self::isRGBa($trimmed)) {
			$val = sprintf(self::$template, $val, $trimmed);
		}

	}

	private static function isHex($input) {
		return preg_match("~^#?([0-9a-fA-F]{3}){1,2}$~", $input);
	}

	private static function isRGBa($input) {
		return preg_match("~^rgba?\((\d+),(\d+),(\d+)(,(\d+))?\)$~", $input);
	}

}