Modified buildSelect.php to better handle multiple comma separated values

xml.inc.php

<?php
/**
* Copyright (c) 2009 Travel UCD
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* 
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/


/**
 * Parses a passage of text and returns a html image tag.
 * Img src is either a blank.gif if the string is empty,
 * the first src="" 
 * 
 * @author Paul Slugocki
 * @param string $string
 * @return string HTML image tag
 */
function processImage($string) {
	$strReturn = '<img src=';
	if($string=="") {
		$strReturn .= '"blank.gif"';
	} else {
		$pattern = '/src="([:%\w\s\.\+\/-]+)/';
		if(preg_match($pattern, $string, $matches)) {
			$strReturn .= '"'.$matches[1].'"';
		} else {
			$strReturn .= '"'.$string.'"';
		}
	} 
	
	$strReturn .= ' class="thumb" />';
	return $strReturn;
}


/**
 * simplexml_load_file() wrapper
 * 
 * @author Paul Slugocki
 * @param string $hotelData File location
 * @return simpleXMLElement
 */
function loadXML($hotelData) {
	//if($_SERVER['HTTP_HOST']=="tourcmsdev.macbook") {
		$fileLoc =  $hotelData;
	//} else {
	//	$fileLoc =  '../../xml/'.$hotelData;
	//}
	$xml = simplexml_load_file($fileLoc);
	return $xml;
}


/**
 * Prints a HTML select box populated based on the
 * contents of a node named with the value of $field
 * checks the querystring to set the currently selected
 * option
 * 
 * @author Paul Slugocki
 * @param simpleXMLElement $xml
 * @param string $node the node value(s) to consider 
 * @param string $unfilteredName
 * @return void
 */
function buildSelect($xml, $node, $unfilteredName) {
	$options = array();
	$xPath = '/tours/tour/'.$node;
	$class = "";
	$xml = $xml->xpath($xPath);

	print('<select name="'.$node.'"><option value="">'.$unfilteredName.'</option>');
	
	foreach($xml as $value) {
		$stringValue = strval($value);
		
		// Check for multiples by splitting by comma
		$arValues = explode(",", $stringValue);
		
		foreach ($arValues as $value) {
			$value = trim($value);
			if(!in_array($value, $options) && $value != "") 
				$options[] = $value;
		}
		
		
	}
	sort($options);
	foreach($options as $option) {
		print("<option");
		if(!empty($_GET[$node])) {
			if($_GET[$node]==$option)
				print(' selected="selected"');
		}
		print(">".$option."</option>");
	}
	print("</select>");
}




function getTourNode($xml) {
	$xPath = '/tours/tour[sourceId="'.$_GET['tour'].'"]';
	$xml = $xml->xpath($xPath);
	return $xml;
}

?>