hello..

i want to do a website wich is having search functionality. in this i have to do search flights,hotels etc.., some one suggested me to use kayak api for this. i searched every thing for this. but i didn't get any idea. anyone could suggest me how to use this api in my site.

thanks.

thanks for your reply. i am doing like this using php. but i was getting problem. just run this code. where is the problem please tell me? not getting sessionid. here is the code.

<?
ob_start();
session_start();
  $hostname="http://www.kayak.com";
	$token="mCHpMz2L_a_OrEkz3FSiDg";//"mCHpMz2L_a_OrEkz3FSiDg";
	$sessionid="";
	$searchid="";
	 $searchtype="";
	 $lastcount="";
 class ksearchphpExample
 {
  
	 
	 public function ksearchJavaExample($args){
	 /*print_r($args);
	 echo count($args);exit;*/
		if(count($args) < 4 || count($args) > 5) {
			echo("USAGE:\n".
				"ksearchJavaExample f ORIGIN_AIPORT DESTINATION_AIRPORT DEPART_DATE [RETURN_DATE]\n".
				"ksearchjavaExample h \"city, RC, CC\" CHECKIN_DATE CHECKOUT_DATE\n" );
			exit();
		}
		
		$searchtype='h'; //$args[0].charAt(0);
	
		$sessionid= getsession();
		echo("Session ID:\t".$sessionid );
		
		if($searchtype == 'f' ){
			$searchid= start_flight_search("n", $args[1],$args[2],$args[3],$args[4] );
		}
		
		if( $searchtype == 'h'){
			$searchid= start_hotel_search($args[1],$args[2],$args[3]);
		}
		echo("Search ID:\t".$searchid);
		while (pollResults()) {
			echo("waiting for more...");
		}
	}

 private function getsession(){
		echo("Token:\t\t".$token  );
		$xml = simplexml_load_file($hostname."/k/ident/apisession?token=".$token );

echo $xml->getName() . "<br />";

foreach($xml->children() as $child)
  {
  echo $child->getName() . ": " . $child . "<br />";
  }
		$response=get($hostname+"/k/ident/apisession?token=".$token );
		
	$root=xmlRoot($response);
		$sessionid=$root.getElementsByTagName("sid");
		if( $sessionid.getLength() == 0){
			echo("BAD TOKEN: ".$response);
			exit(1);
		}
		return $sessionid.item(0).getFirstChild().getNodeValue();
	}

 private function fetch($urlstring){
		  $content = "";
	  
		  try {
			$url  = new URL($urlstring);  
	        InputStream is = url.openStream();
	        BufferedReader d = new BufferedReader(new InputStreamReader(is));
	        String s;
	        
	        while (null != (s = d.readLine())) {
	            content = content + s + "\n";
	        }
	        is.close();
	        
		  } catch ( Exception e ) { System.out.println(e.getMessage() ); }
		  return content;
	    }
	
	public static void main(String[] args) {
		ksearchJavaExample ks = new ksearchJavaExample(args);		
	}

 
}
$kps=new ksearchphpExample();
$arg= array ('h','hyderabad,india','03/11/2010','05/11/2010');
echo $kps->ksearchJavaExample($arg);
 
?>

actually code which i get it from the site is in java. so i am changinglike above. this is the java code. how to change this into php.

/*
  Sample API using Kayak API.

  compile:
    javac ksearchJavaExample.java

  Hotel Search:
    java ksearchJavaExample h "Boston,MA,US" 05/07/06 05/09/06

  Flight Search:
    java ksearchJavaExample f BOS SFO 05/07/06 05/09/06 
    
*/

import java.io.*;
import java.net.*;
import javax.xml.parsers.*;
import org.w3c.dom.*;


//import
public class ksearchJavaExample {
	//CONSTANTS
	String hostname="http://www.kayak.com";
	String token="mCHpMz2L_a_OrEkz3FSiDg";
	String sessionid,searchid;
	char searchtype;
	int lastcount;
	
	public ksearchJavaExample(String [] args){
		if(args.length < 4 || args.length > 5) {
			System.out.println("USAGE:\n" +
				"ksearchJavaExample f ORIGIN_AIPORT DESTINATION_AIRPORT DEPART_DATE [RETURN_DATE]\n" +
				"ksearchjavaExample h \"city, RC, CC\" CHECKIN_DATE CHECKOUT_DATE\n" );
			System.exit(1);
		}
		
		searchtype= args[0].charAt(0);
		sessionid= getsession();
		System.out.println("Session ID:\t" + sessionid );
		
		if(searchtype == 'f' ){
			searchid= start_flight_search("n", args[1],args[2],args[3],args[4] );
		}
		
		if( searchtype == 'h'){
			searchid= start_hotel_search(args[1],args[2],args[3]);
		}
		System.out.println("Search ID:\t"+ searchid);
		while (pollResults()) {
			System.out.println("waiting for more...");
		}
	}
	
	private String getsession(){
		System.out.println("Token:\t\t" + token  );
		String response=fetch(hostname+"/k/ident/apisession?token=" + token );
		Element root=xmlRoot(response);
		NodeList sessionid=root.getElementsByTagName("sid");
		if( sessionid.getLength() == 0){
			System.out.println("BAD TOKEN: " + response);
			System.exit(1);
		}
		return sessionid.item(0).getFirstChild().getNodeValue();
	}
	
	
	private String start_flight_search(String oneway,String origin, String destination, 
			String dep_date , String ret_date) {
		String url=hostname +"/s/apisearch?basicmode=true&oneway=n&origin=" +origin +
			"&destination=" +destination + "&destcode=&depart_date="+ dep_date +
			"&depart_time=a&return_date=" + ret_date + "&return_time=a&travelers=1" +
			"&cabin=e&action=doflights&apimode=1&_sid_=" + sessionid;
		return start_search(url);
		
	}
	private String start_hotel_search(String cityandcountry, String 	checkindate
			,String checkoutdate){
		try {
			cityandcountry = URLEncoder.encode(cityandcountry,"UTF-8");  
			checkindate = URLEncoder.encode(checkindate,"UTF-8");
			checkoutdate = URLEncoder.encode(checkoutdate, "UTF-8");
		} catch (Exception e) {}
		String url= hostname +"/s/apisearch?basicmode=true&othercity=" +cityandcountry +
		"&checkin_date=" + checkindate + "&checkout_date="+ checkoutdate +"&minstars=-1&guests1=1&guests2=1&rooms=1&action=dohotels&apimode=1"+
		"&_sid_=" + sessionid;
		return start_search(url);
		
	}
	
	private String start_search(String uri){
		String response= fetch(uri);
		
		
		
		Element root= xmlRoot(response);
		NodeList searchid=root.getElementsByTagName("searchid");
		if( searchid.getLength() == 0){
			System.out.println("SEARCH ERROR: \n" + response);
			System.exit(1);
		}
		return searchid.item(0).getFirstChild().getNodeValue();
	}

	private boolean pollResults(){
		String uri="";
		switch( searchtype){
		case 'f' :
			uri= hostname +"/s/apibasic/flight?searchid="+searchid+"&apimode=1&_sid_="+sessionid ; 
			break;
		case 'h' : 
			uri= hostname+ "/s/apibasic/hotel?searchid="+searchid+ "&apimode=1&_sid_=" + sessionid; 
			break;
		}
		
		String response=fetch(uri);
		System.out.println("POLL REULTS URL: "+ uri + "\n" + response);
			
		return handleResults(response);
	}
	
	private boolean handleResults(String response){
		boolean more=false;
		Document root= xmlRoot2(response);
		
		lastcount=Integer.parseInt( root.getElementsByTagName("count").item(0).getFirstChild().getNodeValue());
		
		if (root.getElementsByTagName("morepending").getLength() != 0) {
			more = root.getElementsByTagName("morepending").item(0).getFirstChild().getNodeValue().equals("true");
			System.out.println("more pending=" + more);
		}
		
		switch(searchtype){
		
		case 'f':
			NodeList trips=root.getElementsByTagName("trips");
			System.out.println(trips.getLength());
			
				for(Node trip= trips.item(0).getFirstChild(); trip != null ; trip= trip.getNextSibling()){
				
					System.out.println(trip.getNodeName());
					
				}
			break;
			
		case 'h':
			NodeList hotel= root.getElementsByTagName("hotel");
			System.out.println(hotel.getLength());
			
			for(int count=0;count<hotel.getLength();count++){
				String hotelstring="";
				 NodeList childnodes =hotel.item(count).getChildNodes();
				 for( int countchild=0; countchild<childnodes.getLength(); countchild++){
					 String nodename=childnodes.item(countchild).getNodeName();
					 Node childnode=childnodes.item(countchild);
					 if( nodename == "price"){
						 if (childnode.getFirstChild() != null)
							 hotelstring += childnode.getFirstChild().getNodeValue();
						 hotelstring += childnode.getAttributes().getNamedItem("url") + "\n";
						 
					 }
					 if( nodename =="stars")
						 hotelstring += "   " +childnode.getFirstChild().getNodeValue() ;
					 if( nodename =="name")
						 hotelstring += "   " +childnode.getFirstChild().getNodeValue() ;
					 if( nodename =="pricehistorylo")
						 hotelstring += "   " +childnode.getFirstChild().getNodeValue() ;
					 if( nodename =="pricehistoryhi")
						 hotelstring += " - " +childnode.getFirstChild().getNodeValue() ;
					 
				 }
				 
				 System.out.println(hotelstring);
			}
			break;
		
		}
		return more;
	}
	
	
	
	
	private Element xmlRoot(String response){
		Document doc =null;
		try {
		     DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
		     DocumentBuilder db = dbf.newDocumentBuilder();
		     ByteArrayInputStream bais = new ByteArrayInputStream(response.getBytes());
		     doc = db.parse(bais);
		    } catch (Exception e) {
		      System.out.print("Problem parsing the xml: \n" + e.toString());
		}
		    
		return doc.getDocumentElement();
		
	}
	
	private Document xmlRoot2(String response){
		Document doc =null;
		try {
		     DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
		     DocumentBuilder db = dbf.newDocumentBuilder();
		     ByteArrayInputStream bais = new ByteArrayInputStream(response.getBytes());
		     doc = db.parse(bais);
		    } catch (Exception e) {
		      System.out.print("Problem parsing the xml: \n" + e.toString());
		}
		    
		return doc;
		
	}
	
	
	  private String fetch(String urlstring){
		  String content = "";
	  
		  try {
			URL url  = new URL(urlstring);  
	        InputStream is = url.openStream();
	        BufferedReader d = new BufferedReader(new InputStreamReader(is));
	        String s;
	        
	        while (null != (s = d.readLine())) {
	            content = content + s + "\n";
	        }
	        is.close();
	        
		  } catch ( Exception e ) { System.out.println(e.getMessage() ); }
		  return content;
	    }
	
	public static void main(String[] args) {
		ksearchJavaExample ks = new ksearchJavaExample(args);		
	}

}

after multiple tries i get the session id. but hostname not coming in class

<?
ob_start();
session_start();

 class ksearchphpExample
 {
public $hostname="http://www.kayak.com";
public	$token="mCHpMz2L_a_OrEkz3FSiDg";//"mCHpMz2L_a_OrEkz3FSiDg";
public	$sessionid="";
public	$searchid="";
public	 $searchtype="";
public	 $lastcount="";  
	 
	 public function ksearchJavaExample($args){
	 /*print_r($args);
	 echo count($args);exit;*/
		if(count($args) < 4 || count($args) > 5) {
			echo("USAGE:\n".
				"ksearchJavaExample f ORIGIN_AIPORT DESTINATION_AIRPORT DEPART_DATE [RETURN_DATE]\n".
				"ksearchjavaExample h \"city, RC, CC\" CHECKIN_DATE CHECKOUT_DATE\n" );
			exit();
		}
		
		$searchtype='h'; //$args[0].charAt(0);
	
		$sessionid=$this->getsession();
		echo("Session ID:\t".$sessionid );
		
		if($searchtype == 'f' ){
			$searchid= start_flight_search("n", $args[1],$args[2],$args[3],$args[4] );
		}
		
		if( $searchtype == 'h'){
			$searchid=$this->start_hotel_search($args[1],$args[2],$args[3]);
		}
		echo("Search ID:\t".$searchid);
		while (pollResults()) {
			echo("waiting for more...");
		}
	}

 private function getsession(){
 //echo $hostname,$token; exit;
		 $objDOM = new DOMDocument();
  $objDOM->load("http://www.kayak.com/k/ident/apisession?token=mCHpMz2L_a_OrEkz3FSiDg"); //make sure path is correct


  $note = $objDOM->getElementsByTagName("ident");
  // for each note tag, parse the document and get values for
  // tasks and details tag.
  foreach( $note as $value )
  {
    $tasks = $value->getElementsByTagName("sid");
    return $tasks->item(0)->nodeValue;

    }

	}


 private function start_hotel_search($cityandcountry, $checkindate
			,$checkoutdate){
			echo $hostname,$sessionid; exit;
		
		$url=$hostname."/s/apisearch?basicmode=true&othercity=".$cityandcountry.
		"&checkin_date=".$checkindate."&checkout_date=".$checkoutdate."&minstars=-1&guests1=1&guests2=1&rooms=1&action=dohotels&apimode=1".
		"&_sid_=".$sessionid; 
		return $this->start_search($url);
		
	}

 
}
$kps=new ksearchphpExample();
$arg= array ('h','hyderabad,india','03/11/2010','05/11/2010');
echo $kps->ksearchJavaExample($arg);
 
?>

ok...i got it. but i am not getting images . how to get images from kayak api

<?
ob_start();
session_start();
 
 class ksearchphpExample
 {
    public $hostname='https://server16.kproxy.com/servlet/redirect.srv/sruj/stkjmx/slmn/p1/';
    public $token='mCHpMz2L_a_OrEkz3FSiDg';//"mCHpMz2L_a_OrEkz3FSiDg";
	public $sessionid='';
	public $searchid='';
	public  $searchtype='';
	public  $lastcount='';
	 
	 public function ksearchJavaExample($args){
	 
	 /*print_r($args);
	 echo count($args);exit;*/
		if(count($args) < 4 || count($args) > 5) {
			echo("USAGE:\n".
				"ksearchJavaExample f ORIGIN_AIPORT DESTINATION_AIRPORT DEPART_DATE [RETURN_DATE]\n".
				"ksearchjavaExample h \"city, RC, CC\" CHECKIN_DATE CHECKOUT_DATE\n" );
			exit();
		}
		
		$searchtype='h'; //$args[0].charAt(0);
		 		$this->sessionid=$this->getsession();
		//echo("Session ID:\t".$this->sessionid );
		
		if($searchtype == 'f' ){
			$searchid= start_flight_search("n", $args[1],$args[2],$args[3],$args[4] );
		}
		
		if( $searchtype == 'h'){
			$this->searchid= $this->start_hotel_search($args[1],$args[2],$args[3]);
		}
		//echo("Search ID:\t".$this->searchid);
		while ($this->pollResults()) {
			echo("waiting for more...");
		}
	}

 private function getsession(){
 
		 $objDOM = new DOMDocument();
  $objDOM->load($this->hostname."/k/ident/apisession?token=".$this->token); //make sure path is correct


  $note = $objDOM->getElementsByTagName("ident");
  // for each note tag, parse the document and get values for
  // tasks and details tag.
  foreach( $note as $value )
  {
    $tasks = $value->getElementsByTagName("sid");
    return $tasks->item(0)->nodeValue;

    }

	}
	
	private function start_hotel_search($cityandcountry, $checkindate
			,$checkoutdate){
			
		/*try {
			$cityandcountry = URLEncoder.encode(cityandcountry,"UTF-8");  
			$checkindate = URLEncoder.encode(checkindate,"UTF-8");
			$checkoutdate = URLEncoder.encode(checkoutdate, "UTF-8");
		} catch (Exception e) {}*/
		$url=$this->hostname."/s/apisearch?basicmode=true&othercity=".$cityandcountry.
		"&checkin_date=".$checkindate."&checkout_date=".$checkoutdate."&minstars=-1&guests1=1&guests2=1&rooms=1&action=dohotels&apimode=1".
		"&_sid_=".$this->sessionid; 
		return $this->start_search($url);
		
	}
	
	private function start_search($uri){
	
		$objDOM1 = new DOMDocument();
  $objDOM1->load($uri); //make sure path is correct


  $note1 = $objDOM1->getElementsByTagName("search");
  // for each note tag, parse the document and get values for
  // tasks and details tag.
  foreach( $note1 as $value1 )
  {
 // echo $value1;exit;
    $tasks1 = $value1->getElementsByTagName("searchid");
    return $tasks1->item(0)->nodeValue;

    }

	}


		private function  pollResults(){
		$uri="";
		
			$uri= $this->hostname."/s/apibasic/hotel?searchid=".$this->searchid."&apimode=1&c=121&_sid_=".$this->sessionid; 
			//echo $uri;exit;
			echo"<br>";
			 $objDOM = new DOMDocument();
  $objDOM->load($uri); //make sure path is correct


  $note = $objDOM->getElementsByTagName("hotel");
  // for each note tag, parse the document and get values for
  // tasks and details tag.

  foreach( $note as $value )
  {
  
 
    $name = $value->getElementsByTagName("name");
    $name  = $name->item(0)->nodeValue;
	$stars = $value->getElementsByTagName("stars");
    $stars  = $stars->item(0)->nodeValue;


    echo "$name-$stars";
	echo "<br>";
  }
	
	}
	



 
}
$kps=new ksearchphpExample();
$arg= array ('h','hyderabad,india','11/04/2010','11/06/2010');
echo $kps->ksearchJavaExample($arg);
 
?>
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