There are two files used in this example.

1) index.php
2) ManageCache.php
“ManageCache.php” is the library file for caching. You can use or modify the methods if required.
“index.php” is the file where we are performing cache related operations like checking, removing and displaying cache information.
Please refer both files in detail before implementing zend caching for dynamic data.

1) ManageCache.php

<?php

class ManageCache
{

// Defining variables
protected static $_cache;
protected $_cache_id;

function __construct($user_id)
{
// Requiring base cache file from zend library and if library was included then no need to write this line of code
require_once ‘Zend/Cache.php’;

// Defining Cache Unique Value
$this->_cache_id = md5($user_id);

// Loading Default Cache Frontend Settings
$frontendOptions = array(
‘lifetime’=> 7200,
‘automatic_serialization’ => true
);

// Loading Default Cache Backend Settings
$backendOptions = array(
‘cache_dir’=> ‘/tmp’
);

// Checking cache object set or not
if(self::$_cache==null)
{
// Setting Up Zend Cache Factory Options
self::$_cache = Zend_Cache::factory(
‘Core’,
‘File’,
$frontendOptions,
$backendOptions
);
}
}

/**
* Check Cache Data.
*
* @param Cache Identifier.
* @return Boolean on false and return unserialize the cache data on success
*/
public function checkCache($identifier=”)
{
// Resultant Array Data
$resultArray = array();

// Checking and fetching data if cache is set
if(!($resultArray = self::$_cache->load($this->_cache_id.$identifier)))
return false;
else
return unserialize($resultArray);
}

/**
* Save Cache Data.
*
* @param Cache Identifier.
* @param Array of data to be serialize and cached.
* @return None
*/
public function saveCache($identifier=”,$data=array())
{
// Saving Cache data
if(!($resultArray = self::$_cache->load($this->_cache_id.$identifier)))
self::$_cache->save(serialize($data));
}

/**
* Remove Cache Identifier Data.
*
* @param Cache Identifier.
* @return None
*/
public function removeCache($identifier=”)
{
// Removing Cache Identifier
self::$_cache->remove($this->_cache_id.$identifier);
}
}

?>

2) index.php

<?php

// Requiring base Manage cache file
require_once ‘ManageCache.php’;

// Say, I want to create cache for user id ==> 1
$userId = 1;

// Defining base cache object
$objCache = new ManageCache($userId);

// check if the ‘myresult’ key is present into the cache
if (!$resultData = $objCache->checkCache(‘myResultCache’))
{
// Connect to database and get required data which needs to cache
require_once ‘Zend/Db.php’;
$db = Zend_Db::factory(“Define Db Connection object”);
$resultData = $db->fetchAll(‘SELECT * FROM tablename’);

// update the cache
$objCache->saveCache($resultData, ‘myResultCache’);
}

// If you want to remove cache then
$objCache->removeCache(‘myResultCache’);

// Get the resultant data
print_r($resultData);

?>

1) First check is java installed ?

Run below command in you terminal if you are using linux. 

cmd : java

If you are using windows then check in your program files.

C:\Program Files

IF NOT INSTALLED, Download it from here…

http://www.oracle.com/technetwork/java/javase/downloads/jdk-7u2-download-1377129.html

2) Then we will need to download apache solr.

Run this command in your terminal to download apache solr online. (Linux)

cmd : wget -i http://apache.mirrors.tds.net//lucene/solr/3.5.0/apache-solr-3.5.0.tgz

You can download it online from here.

http://apache.mirrors.tds.net//lucene/solr/

It will download apache solr online as zip compressed.

Extract this zip file in your drive.

3) Now we will need mysql jdbc connector. You can download it from here:

Url: http://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-java-5.1.17.zip/from/http://gd.tuwien.ac.at/db/mysql/

After downloading extract the zip file, you will find ‘mysql-connector-java-5.1.17-bin.jar‘ in this folder.

Copy this file ‘mysql-connector-java-5.1.17-bin.jar’ and paste in ‘apache-solr-3.5.0/example/lib’ Directory.

4) After that open solr Config.xml from “apache-solr-3.5.0/example/solr/conf/solrconfig.xml”

Search for “A Robust Example”

Add below lines above the searched text:

<requestHandler name=”/dataimport” class=”org.apache.solr.handler.dataimport.DataImportHandler”>

<lst name=”defaults”>

<str name=”config”>data-config.xml</str>

</lst>

</requestHandler>

Save the solrconfig.xml file.

5) Next, create file at following location “apache-solr-3.5.0/example/solr/conf/” with the name ‘data-config.xml‘.

This is for setting DB connection with username, pass and also for importing data. Example data-config.xml.

<!–  DATA CONFIG FILE EXAMPLE –>

<dataConfig>

<dataSource type=”JdbcDataSource”

driver=”com.mysql.jdbc.Driver”

url=”jdbc:mysql://localhost/<tablename>”

user=”root”

password=”"/>

<document>

<entity name=”user_id”  query=”select user_id, concat(user_id,’_',’user’)as concatunid,concat(first_name,’ ‘,last_name) as name,email_id,’user’ as category from

tbl_user”>

<field column=”concatunid” name=”id”/>

<field column=”user_id” name=”unid_i”/>

<field column=”name” name=”name”/>

<field column=”email_id” name=”description”/>

<field column=”category” name=”category”/>

</entity>

<entity name=”listid”    query=”select *,concat(listid,’_',’user’)as concatunid,’url’ as category from siteurl_list”>

<field column=”concatunid” name=”id”/>

<field column=”listid” name=”unid_i”/>

<field column=”siteurl” name=”name”/>

<field column=”category” name=”category”/>

</entity>

</document>

</dataConfig>

            Replace <tablename> with your table name.

6) If you want to add any new field in “Schema” for indexing at solr then you have to make changes at “apache-solr-3.5.0/example/solr/conf/schema.xml” file.

Example Changes:

<field name=”title” type=”text” indexed=”true” stored=”true” multiValued=”true”/>

7) Now that we have installed and done all the required settings, time to run solr

For starting Solr use below command

cd apache-solr-3.5.0/example/

java -jar start.jar //This will start Solr at the server

OR

java -jar start.jar & disown // For Run solr In back ground If we close or exit terminal

You can directly click on the start.jar file.

8) Running Solr on browser use this url at server*

Can replace “Localhost” with domain name or IP

Example: http://localhost:8983/solr/

9) Now your solr is up and running… But if you want to import the fields from your table then

For Importing All DB data at solr according to your data-config.xml

URL: http://localhost:8983/solr/admin/dataimport.jsp?handler=/dataimport

10) For Accessing solr by php use “Solr-PHP-client” lib

URL: http://code.google.com/p/solr-php-client/downloads/list

Download PHP Lib url : http://code.google.com/p/solr-php-client/downloads/detail?name=SolrPhpClient.r60.2011-05-04.zip&can=2&q=

function readCookie(name) {
var nameEQ = name + “=”;
var ca = document.cookie.split(‘;’);
for(var i=0;i < ca.length;i++) {
var c = ca[i];
while (c.charAt(0)==’ ‘) c = c.substring(1,c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
}
return null;
}

function eraseCookie(name) {
createCookie(name,”",-1);
}

// Creating a cookie
createCookie(‘cookiename’,'value’,'int-no of days’);

// Read cookie
readCookie(‘cookiename’)

// Erase cookie
eraseCookie(‘cookiename’);

ZF is both. Zend Framework provides all the components required for most web applications in a single distribution. But Zend Framework components are also loosely coupled, making it easy to use just a few components in a web application- even alongside other frameworks! Using this use-at-will architecture, we are implementing features commonly found in more monolithic frameworks. In fact, we are currently working on a tooling component for the 1.8 release that will make it simpler to build applications using ZF components, yet will not sacrifice the use-at-will nature of existing ZF components. It’s a testament to the use-at-will architecture of Zend Framework that the tooling component itself can be used standalone.

2) What is autoloader?
Autoloader is function that load all the object on start up.

3) What is use of Zend front controller?
Routing and dispatching is managed in the front controller. It collects all the request from the server and handles it.

4) What is the use of Bootstrap?
Apart from index if we want to do any extra configuration regarding database and other things that is done within bootstrap.

5) Zend auth
It is used to authenticate user, for example like admin, general etc.

6) Zend Acl
Based on the zend authentication it allows the user to access certain actions.

7) How do u set Module name, Controller name, and Action name in Zend framework?
a) $request->setModuleName(‘front’);
b) $request->setControllerName(‘address’);
c) $request->setActionName(‘addresslist’);

8) Configuration in Zend Framework, application.ini file?
Configuration can be done in application.ini file in Zend framework. This file in the path application/configs/application.ini.

9) Checking whether form posted or not in Zend framework?
$request = $this->getRequest();
$_GET = $request->getParams();
$_POST = $request->getPost();

10) Does Zend Framework support PHP 4?
No. Zend Framework was built to use all of the sophisticated object oriented features of PHP 5 and take advantage of significant performance and security enhancements.

11) Fetch last inserted id, fetch all record and fetch a single record.
$this->_db->lastInsertId();
$this->_db->fetchAll($sql);
$this->_db->fetchRow($sql);

12) Difference between Zend_Registry and Zend_Session?
The basic difference between these objects is the ‘scope’ in which they are valid:
a) Zend_Registry : request scope
b) Zend_Session : session scope

Zend_Registry is used to store objects/values for the current request. In short, anything that you commit to Registry in index.php can be accessed from other controllers/actions (because EVERY request is first routed to the index.php bootstrapper via the .htaccess file). Config parameters and db parameters are generally prepped for global use using the Zend_Registry object.

Zend_Session actually uses PHP sessions. Data stored using Zend_Session can be accessed in different/all pages. So, if you want to create a variable named ‘UserRole’ in the /auth/login script and want it to be accessible in /auth/redirect, you would use Zend_Session.

13) When do we need to disable layout?
At the time of calling AJAX to fetch we need to disable layout.
$this->_helper->layout()->disableLayout();
$this->_helper->viewRenderer->setNoRender(true);

14) Filters in Zend Framework with Examples?
The Zend_Filter component provides a set of commonly needed data filters. It also provides a simple filter chaining mechanism by which multiple filters may be applied to a single datum in a user-defined order.

Example:
// Add an email element
$this->addElement(‘text’, ‘email’, array(
‘label’ => ‘Your email address:’,
‘required’ => true,
‘filters’ => array(‘StringTrim’),
‘validators’ => array(
‘EmailAddress’,
)
));
Other Filters:

Alnum – Zend_Filter_Alnum is a filter which returns only alphabetic characters and digits. All other characters are supressed.
Alpha – Zend_Filter_Alpha is a filter which returns the string $value, removing all but alphabetic characters. This filter includes an option to also allow white space characters.

15) Name some Important component in zend framework?
Uses of Zend_Controller
Gives the request & reponse methods by using its sub-classes.
$request = new Zend_Controller_Request_Http()
$response = new Zend_Controller_Response_Http()

Uses of Zend_Date
Date related processing can be done using this component.

Uses of Zend_File_Transfer
it provides extensive support for file uploads and downloads.

Uses of Zend_Db
It is used to doing database related purpose in our appication.

Uses of Zend_Paginator
Doing the pagination in our application.

Uses of Zend_Auth
It is used to authenticate a user.

$auth = Zend_Auth::getInstance();
$results = $auth->authenticate($adapter);
if ($results->isValid()){
/* user successfully authenticate into login process */
}

Zend_Session_Namespace
This is a simple proxy class to use API into the Zend_Session managed $_SESSION Superglobal.

16) Where is the model in ZF’s MVC implementation?
The model component can vary dramatically in responsibilities and data store from one MVC application to the next.

17) How to call two different views from same action?
Example1:
Public function indexAction() {
If(condition)
$this->render(‘yourview.phtml’);
Else
Index.phtml;

Example2:
Public function indexAction() {
}
Now in your index.phtml you can have this statement to call other view
$this->action(‘action name’,’controller name’,’module name’,array(‘parameter name’=>’parameter value’));

18) Can we call a model in view?
Yes, you can call a model in view. Simple create the object and call the method.

<?php
function genRandomPass($pw_length = 8, $use_caps = true, $use_numeric = true, $use_specials = true, $use_small = true) {
$chars = array();
$pw = array();
$caps = array();
$numbers = array();
$all = array();
$num_specials = $pw_length;
$reg_length = $pw_length;
$pws = array();

if ($use_small) for ($ch = 97; $ch <= 122; $ch++) $chars[] = $ch; // create a-z
if ($use_caps) for ($ca = 65; $ca <= 90; $ca++) $caps[] = $ca; // create A-Z
if ($use_numeric) {
for ($nu = 48; $nu <= 57; $nu++) $numbers[] = $nu; // create 0-9
if($use_small == false || $use_caps == false || $use_numeric == false) {
for ($nu = 48; $nu <= 57; $nu++) $numbers[] = $nu; // create 0-9
}
}

$all = array_merge($chars, $caps, $numbers);
if ($use_specials) {
if($use_small == true || $use_caps == true || $use_numeric == true) {
$reg_length = ceil($pw_length*0.75);
$num_specials = $pw_length – $reg_length;
if ($num_specials > 5) $num_specials = 5;
}
for ($si = 33; $si <= 47; $si++) $signs[] = $si;
$rs_keys = array_rand($signs, $num_specials);
foreach ($rs_keys as $rs) {
$pws[] = chr($signs[$rs]);
}
}

if(sizeof($all) > 0) {
$rand_keys = array_rand($all, $reg_length);
foreach ($rand_keys as $rand) {
$pw[] = chr($all[$rand]);
}
}

$compl = array_merge($pw, $pws);
shuffle($compl);
return implode(”, $compl);
}

//Generate string/password with 10 character only small letters.
echo genRandomPass(10, false, false, false, true);
//Generate string/password with 12 character small letters, digit, special characters.
echo genRandomPass(10, false, true, true, true);
?>

echo $txt = “India has most historical places.”;
echo “<br>”;
echo ShortenTxt($txt); 

function ShortenTxt($txt)
{
 // Change to the number of characters to display       
 $chars = 20;
 $txt = $txt.” “;
 $txt = substr($txt,0,$chars); 
 $txt = substr($txt,0,strrpos($txt,’ ‘));
 $txt = $txt.”…”;       
 return $txt;
}
?>

<script language=”javascript” type=”text/javascript”>
function showPic(whichpic) {

if (document.getElementById) {
//  alert(document.getElementById);

document.getElementById(‘placeholder’).src = whichpic.href;
return false;
if (whichpic.title) {
document.getElementById(‘desc’).childNodes[0].nodeValue = whichpic.title;
} else {
document.getElementById(‘desc’).childNodes[0].nodeValue = whichpic.childNodes[0].nodeValue;
}
return false;
} else {
return true;
}
}

var previousToggle=null;
function toggleMe(a){
var e=document.getElementById(a);
if(!e)return true;
if(e.style.display==”none”){
e.style.display=”block”;
if(previousToggle)previousToggle.style.display=”none”;
previousToggle=e;
}
return true;
}

</script>

Add this code in the table where you want to display the image. Here six tumbnail images are displayed. On selecting the thumbnail image a large image will be displayed.

Include this code in the php page where you want to display the image gallary.

<table><tr>
<td><img id=”placeholder” src=”hotel_images/<?php echo $row_hot['hotel_image1']?>” border=”0″ width=”500″ height=”250″ /></td>

</tr>

<tr>
<td align=”center”><a onClick=”toggleMe(‘para1′);return showPic(this);” href=”<?php echo “hotel_images/”.$row_hot['hotel_image1'];?>” ><?php if($row_hot['hotel_image1'] != “”){
?><img style=”border:none; padding-top:2px” src=’<?php echo “hotel_images/”.$row_hot['hotel_image1'];?>’  alt=”" width=”100″ height=”50″><?php } ?></a>
</td>
<td align=”center”><a onClick=”return showPic(this)” href=”<?php echo “hotel_images/”.$row_hot['hotel_image2'];?>”><?php if($row_hot['hotel_image2'] != “”){
?><img style=”border:none; padding-top:2px” src=’<?php echo “hotel_images/”.$row_hot['hotel_image2'];?>’ alt=”" width=”100″ height=”50″><?php } ?></a>     </td>
</tr>

<tr>
<td align=”center”><a onClick=”toggleMe(‘para1′);return showPic(this);” href=”<?php echo “hotel_images/”.$row_hot['hotel_image3'];?>” ><?php if($row_hot['hotel_image3'] != “”){
?><img style=”border:none; padding-top:2px” src=’<?php echo “hotel_images/”.$row_hot['hotel_image3'];?>’  alt=”" width=”100″ height=”50″><?php } ?></a>     </td>
<td align=”center”><a onClick=”return showPic(this)” href=”<?php echo “hotel_images/”.$row_hot['hotel_image4'];?>”><?php if($row_hot['hotel_image4'] != “”){
?><img style=”border:none; padding-top:2px” src=’<?php echo “hotel_images/”.$row_hot['hotel_image4'];?>’ alt=”" width=”100″ height=”50″><?php } ?></a>     </td>
</tr>

<tr>
<td align=”center”>
<a onClick=”toggleMe(‘para1′);return showPic(this);” href=”<?php echo “hotel_images/”.$row_hot['hotel_image5'];?>” ><?php if($row_hot['hotel_image5'] != “”){
?><img style=”border:none; padding-top:2px” src=’<?php echo “hotel_images/”.$row_hot['hotel_image5'];?>’  alt=”" width=”100″ height=”50″><?php } ?></a>     </td>
<td align=”center”><a onClick=”return showPic(this)” href=”<?php echo “hotel_images/”.$row_hot['hotel_image6'];?>”><?php if($row_hot['hotel_image6'] != “”){
?><img style=”border:none; padding-top:2px” src=’<?php echo “hotel_images/”.$row_hot['hotel_image6'];?>’ alt=”" width=”100″ height=”50″><?php } ?></a>     </td>
</tr>

</table

<?php
ini_set(‘max_execution_time’,600);
$lib_paths = array();
$lib_paths[] = “../application/”;
$lib_paths[] = “../library/”;

$inc_path = implode(PATH_SEPARATOR, $lib_paths);
set_include_path($inc_path);

include_once(‘../application/bootstrap.php’);
include_once(‘../library/Zend/Loader.php’);
//include_once(‘../library/Zend/Filter/Input.php’);
Zend_Loader::registerAutoload();

try
{
    $frontController = Zend_Controller_Front::getInstance();
    $frontController->throwExceptions(true);
    $frontController->setControllerDirectory(‘../application/controllers/’);
    $frontController ->setParam(‘noErrorHandler’, true);
 //$this->input = new Input;
    $frontController->dispatch();
} catch (Exception $exp) {
    $contentType = ‘text/html’;
    header(“Content-Type: $contentType; charset=utf-8″);
    echo ‘an unexpected error occured.’;
    echo ‘<h2>Unexpected Exception: ‘ . $exp->getMessage() . ‘</h2><br /><pre>’;
    echo $exp->getTraceAsString();
}

Bootstrap file for zend

bootstrap.php

<?php
//require_once (‘../library/Zend/Loader.php’);
include_once(‘../library/Zend/Loader.php’);
Zend_Loader::loadClass(‘Zend_Cache’);
Zend_Loader::loadClass(‘Zend_Db’);
Zend_Loader::loadClass(‘Zend_Db_Table’);
Zend_Loader::loadClass(‘Zend_Config_Ini’);

class Globals
{
   
    private static $_db       = null;
    private static $_cache    = null;
    private static $_config   = null;
 
   
    static public function getDBConnection()
    {
        if (self::$_db != null) {
            return self::$_db;
        } // if (self::$_db != null)
       
        self::$_db = Zend_Db::factory(‘Pdo_Mysql’,
                                      array (‘host’     => self::getConfig()->db->host,
                                             ‘username’ => self::getConfig()->db->username,
                                             ‘password’ => self::getConfig()->db->password,
                                             ‘dbname’   => self::getConfig()->db->dbname));
        Zend_Db_Table::setDefaultAdapter(self::$_db);
        return self::$_db;
    }
    static public function getCache()
    {
        if (self::$_cache != null) {
            return self::$_cache;
        } // if (self::$_db != null)
       
      self::$_cache =  Zend_Cache::factory(‘Core’,
                                           ‘File’,
                                            array(‘lifeTime’=>600,
                                                  ‘automatic_serialization’=>true),
                                                  array(‘cache_dir’=>self::getConfig()->dirs->cache));
   
        return self::$_cache;
    }

    public static function getConfig()
    {
        if (self::$_config != null) {
            return self::$_config;
        }
       
        self::$_config = new Zend_Config_Ini(
            dirname(__FILE__) . DIRECTORY_SEPARATOR . ‘config.ini’,
            ‘main’,
            true);
       
        return self::$_config;
    }

} // class Globals

// Shopping cart

<?
session_start();

if($_SESSION['cart'] == “”)
{
  $_SESSION['cart'] = $_REQUEST['pid'];
  $_SESSION['qtt']  = “1#”.$_REQUEST['pid'];
echo “<a href=’home.php?p=cart_det’ >View Your Cart</a>&nbsp;|&nbsp;<a href=’home.php?p=sell_prod&r=5′>Remove Cart</a>”;
}else
{
  $arr_list_prod = explode(“,”,$_SESSION['cart']); //conver the coma separeted sentence to array named ‘arr_list_prod’
  $arr_list_prod = array_unique($arr_list_prod); //To remove duplicate values from array ‘arr_list_prod’

  if(!in_array($_REQUEST['pid'],$arr_list_prod))
  {
  $_SESSION['cart'] = implode(“,”,$arr_list_prod);   
  $_SESSION['cart'] = $_SESSION['cart'].”,”.$_REQUEST['pid'];

  $_SESSION['qtt']  = $_SESSION['qtt'] .”,1#”.$_REQUEST['pid'];
  }
echo “<a href=’home.php?p=cart_det’ >View Your Cart</a>&nbsp;|&nbsp;<a href=’home.php?p=sell_prod&r=5′>Remove Cart</a>”;
}
?>