code

<?php
/**
 * This class is used in the work fortheloveoffame.com
 * It has been reworked to use AJAX for proper time-handling.
 * Some functions aren't used any longer but remain here for
 * completeness.
 * @author Vincent Bruijn <vebruijn@gmail.com>, ax710
 * @version 2.0 january 2009
 */
class ax710
{
	/**
	 * @var string the URL to the searchengine
	 * change in case the URL doesn't return a JSON string
	 */
	private static $url = "http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=";

/**
	 * Convert amount to CMYK
	 * K: rgb( 35,  31,  32) = 0
	 * M: rgb(236,   0, 140) = 25
	 * C: rgb(  0, 174, 239) = 50
	 * Y: rgb(255, 242,   0) = 75
	 * W: rgb(255, 255, 255) = 100
	 * Verloop: K -> M -> C -> Y -> White
	 *
	 * @param integer $amount getal van 0 tot 100
	 * @return string of type rgb(xxx,xxx,xxx)
	 */
	public static function convertToCMYK($amount)
	{
		if ((int) $amount > 100 || (int) $amount < 0) {
			return false;
		}
	    if ($amount <= 25) {
	        $deltaR = (236 -  35) * ($amount / 25) + 35;
	        $deltaG = 31 - ( 31 -   0) * ($amount / 25);
	        $deltaB = (140 -  32) * ($amount / 25) + 32;
	    } else if ($amount <= 50) {
	        $deltaR = 236 - (236 * (($amount - 25) / 25));
	        $deltaG = (174 -   0) * (($amount - 25) / 25);
	        $deltaB = (239 - 140) * (($amount - 25) / 25) + 140;
	    } else if ($amount <= 75) {
	        $deltaR = (255 -   0) * (($amount - 50) / 25);
	        $deltaG = (242 - 174) * (($amount - 50) / 25) + 174;
	        $deltaB = 239 - (239 -   0) * (($amount - 50) / 25);
	    } else if ($amount <= 100) {
	        $deltaR = 255;
	        $deltaG = (255 - 242) * (($amount - 75) / 25) + 242;
	        $deltaB = (255) * (($amount - 75) / 25);
	    }
	    return "rgb(" . round($deltaR) . ", " . round($deltaG) . ", " . round($deltaB) . ")";
	}

/**
	 * This is the 'AJAX' version of the function below.
	 * It doesn't use a whole array but returns just the estimated result as integer.
	 * @param string $artist Name of artist (or anything)
	 * @return integer $position
	 */
	public static function getScoreAJAX($artist)
	{
		$url  = self::$url;
		$url .= urlencode($artist);
		$position = 0;

$result = @file_get_contents($url);
		if ($result != false) {
			$array_result = json_decode($result);
			$position = (int) $array_result->responseData->cursor->estimatedResultCount;
		}

return $position;
	}

/**
	 * function to retrieve the google estimated result count
	 * per artist
	 * @param array An array of strings of names of artists
	 * @return array A sorted array of elements consisting of a string and an integer between 0 and 100
	 */
	public static function getScoreAndSort(array $artists)
	{
		foreach ($artists as $key=>$artist) {
			$url  = self::$url;
			$url .= urlencode($artist);

$top100[$key][0] = (string) $artist;

$result = @file_get_contents($url);
			if ($result != false) {
				$array_result = json_decode($result);
				$top100[$key][1] = (int) $array_result->responseData->cursor->estimatedResultCount;
				$top100[$key][2] = (int) $array_result->responseData->cursor->estimatedResultCount;
			} else {
				$top100[$key][1] = (int) $key;
			}

}

usort($top100, array("ax710","cmp"));

$highest = $top100[0][1];

foreach ($top100 as &$artist) {
			$score = - (100 * $artist[1] / $highest) + 100;
			$artist[1] = round($score);
		}

return $top100;
	}

/**
	 * compare function for usort()
	 * @param array key
	 * @param array key
	 * @return integer value used by usort to sort an array
	 */
	private static function cmp($a, $b)
	{
		if ($a[1] == $b[1]) {
		    return 0;
		}
		return ($a[1] > $b[1]) ? -1 : 1;
	}
	
	/**
	 * An example function displaying 100 squares changing
	 * from black to magenta to cyan to yellow to white
	 * @return string $example A string of HTML-elements
	 */
	public static function example()
	{
		$example = (string) '';
		for ($value = 1; $value <= 100; $value++) {
			$example .= "<div style=\"background-color: " .  self::convertToCMYK($value);
			$example .= "; height: 170px; width: 170px; line-height: 170px; float: left;";
			$example .= "text-align: center; margin: 4px; font-family: arial; color: #7f7f7f\">\n";
		    $example .= $value . "\n</div>\n";
		}
		
		return $example;
	}
}