function base62_encode($val, $base=62, $chars='0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ') {
		$str = '';
		do {
			$i = $val % $base;
			$str = $chars[$i] . $str;
			$val = ($val - $i) / $base;
		} while($val > 0);
		return $str;
	}
 
	function base62_decode($str, $base=62, $chars='0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ') {
		$len = strlen($str);
		$val = 0;
		$arr = array_flip(str_split($chars));
		for($i = 0; $i < $len; ++$i) {
			$val += $arr[$str[$i]] * pow($base, $len-$i-1);
		}
		return $val;
	}

function strinarray($haystack, $needle) {
	$i = 0;
	foreach ($haystack as $value) {
		$result = stripos($value,$needle);
		if ($result !== FALSE) return $i;
		$i++;
	}
	return FALSE;
}

//Create the array to search through.
$array = array("abc","def","hij","123","456","789");
//Use strinarray to see if "hi" is in the array, and if 
//it is found, echo the array index in which it was found.
if (strinarray($array,"hi")) echo strinarray($array,"hi"); // 3

/*
 * PHP Barcode
 * Written by Jeremy Curcio
 * This work is licensed under a Creative Commons 
 * Attribution-ShareAlike 3.0 Unported License.
 */
 
function upcaBarcode($numbers, $width, $height) {
 
	//Set output to be an image.
	header("Content-type:image/png");
	//Create image object and colors and define width of bars.
	if ($width < 190) $width = 190; 
	$barWidth = $width/95;
	$img=imagecreate($width, $height);
	$black_color=imagecolorallocate($img,0,0,0);
	$white_color=imagecolorallocate($img,255,255,255);
	//Set the background to white.
	imagefilledrectangle($img, 0, 0, 200, 60, $white_color);
	//Check to make sure $numbers is 12 characters long.
	$check = (intval(substr($numbers,0,1))*3)+intval(substr($numbers,1,1))+(intval(substr($numbers,2,1))*3)+intval(substr($numbers,3,1))+(intval(substr($numbers,4,1))*3)+intval(substr($numbers,5,1))+(intval(substr($numbers,6,1))*3)+intval(substr($numbers,7,1))+(intval(substr($numbers,8,1))*3)+intval(substr($numbers,9,1))+(intval(substr($numbers,10,1))*3);
	if ($check != 0) $check = 10-substr($check,strlen($check)-1,1);
	$numbers = $numbers.$check;
	$c = $numbers;
	if ((strlen($numbers) == 12) &amp;&amp; (is_numeric($numbers))) {
		//Append start and finish characters to the barcode.
		$numbers = "z".$numbers."z";
		//Find the middle of the string, break the string in half
		//then add the middle separater to the barcode.
		$half = (int) ( (strlen($numbers) / 2) );
		$left = substr($numbers, 0, $half);
		$right = substr($numbers, $half);
		$middle = "sbsbs";
		$numbers = $left.$middle;
		$numbers2 = $right;
		//Replace the left half's numbers with the correct pattern.
		$numbers = str_replace("z","sbsbs",$numbers);
		$numbers = str_replace("0","sssbbsb",$numbers);
		$numbers = str_replace("1","ssbbssb",$numbers);
		$numbers = str_replace("2","ssbssbb",$numbers);
		$numbers = str_replace("3","sbbbbsb",$numbers);
		$numbers = str_replace("4","sbsssbb",$numbers);
		$numbers = str_replace("5","sbbsssb",$numbers);
		$numbers = str_replace("6","sbsbbbb",$numbers);
		$numbers = str_replace("7","sbbbsbb",$numbers);
		$numbers = str_replace("8","sbbsbbb",$numbers);
		$numbers = str_replace("9","sssbsbb",$numbers);
		//Replace the right half's numbers with the correct pattern.
		$numbers2 = str_replace("0","bbbssbs",$numbers2);
		$numbers2 = str_replace("1","bbssbbs",$numbers2);
		$numbers2 = str_replace("2","bbsbbss",$numbers2);
		$numbers2 = str_replace("3","bssssbs",$numbers2);
		$numbers2 = str_replace("4","bsbbbss",$numbers2);
		$numbers2 = str_replace("5","bssbbbs",$numbers2);
		$numbers2 = str_replace("6","bsbssss",$numbers2);
		$numbers2 = str_replace("7","bsssbss",$numbers2);
		$numbers2 = str_replace("8","bssbsss",$numbers2);
		$numbers2 = str_replace("9","bbbsbss",$numbers2);
		$numbers2 = str_replace("z","sbsbs",$numbers2);
		//Create one string will all of the encodings.
		$finalEncoding = $numbers.$numbers2;
		//Add the bars and spaces to the image.
		for ($i = 0; $i < strlen($finalEncoding); $i++) {
			if (strcmp($finalEncoding[$i],"b") == 0) imagefilledrectangle($img, $i*$barWidth, 0, ($i*$barWidth)+$barWidth, $height, $black_color);
			else imagefilledrectangle($img, $i*$barWidth, 0, ($i*$barWidth)+$barWidth, $height, $white_color);
		}
	}
	//If $numbers isn't 12 characters wide produce error image.
	else {
		imagestring($img, 4, 0, 12, "Error: Input must be 12", $black_color);
		imagestring($img, 4, 0, 24, "characters (0-9) long.", $black_color);
	}
	//Return completed image.;
	return (imagepng($img));
}

$code = '10261104092'
$width = 200;
$height = 50;
upcaBarcode($code, $width, $height);