Basically what you need to do is attach the validator to both the password and the confirm password field. 

So firstly, add the class:

class My_Validate_PasswordConfirmation extends Zend_Validate_Abstract
{
const NOT_MATCH = 'notMatch';

protected $_messageTemplates = array(
self::NOT_MATCH => 'Password confirmation does not match'
);

public function isValid($value, $context = null)
{
$value = (string) $value;
$this->_setValue($value);

if (is_array($context)) {
if (isset($context['password_confirm'])
&& ($value == $context['password_confirm']))
{
return true;
}
} elseif (is_string($context) && ($value == $context)) {
return true;
}

$this->_error(self::NOT_MATCH);
return false;
}
}

Then, in your form file, use it something like follows:

class RegisterForm extends Zend_Dojo_Form

{

public function init()

{
$form = new Zend_Form();
....
....
....
$custom_pass = new MyValidatePasswordConfirmation();

$password_confirm = $form->createElement('password', 'password_confirm')
->addValidator('StringLength', false, array(1,24))
->setLabel('Confirm your password:')
->addValidator('Alnum')
->addValidator($custom_pass)
->setRequired(true);


It’s fairly straightforward, but of course there’s very few examples I could find, this is probably the best.

playSMS Web Interface:

1.  It is important to meet all minimum requiments above

2.  Setup a system user named ‘playsms’ to manage playSMS

    # adduser playsms

    # passwd playsms

    Note: on some Linux distributions adduser and passwd combined (Debian, Ubuntu and maybe others)

3.  On most Linux distributions actions (2) will create system user and group named ‘playsms’

    with home directory /home/playsms, but you will install playSMS in different directory

4.  Create playSMS web root, spool and log and set ownership to user www-data or web server user

    # mkdir -p /var/www/playsms

    # mkdir -p /var/spool/playsms

    # mkdir -p /var/log/playsms

    # chown -R www-data /var/www/playsms

    # chown -R www-data /var/spool/playsms

    # chown -R www-data /var/log/playsms

5.  Extract playSMS package somewhere (Usually in /usr/local/src)

    # tar -zxvf playsms-x.x.x.tar.gz -C /usr/local/src

    Note: x.x.x may vary according to the package name you’ve download

6.  Copy files and directories inside ‘web’ directory to playSMS web root and set ownership again to 

    user www-data or apache web server user

    # cd /usr/local/src/playsms-x.x.x/web

    # cp -rR * /var/www/playsms

    # chown -R www-data /var/www/playsms

    Note: assumed your web server user is www-data

7.  Setup database (import database)

    # mysqladmin -u root -p create playsms

    # mysql -u root -p playsms < /usr/local/src/playsms-x.x.x/db/playsms.sql

    Note: you dont need to use MySQL root access nor this method to setup playSMS

    database, but this is beyond our scope, you should read MySQL manual’s for custom

    installation method or howto insert SQL statements into existing database

8.  Copy config-dist.php to config.php and edit config.php

    # cd /var/www/playsms

    # cp config-dist.php config.php

    # mcedit config.php

    or 

    # vi config.php

    Note: please read and fill all required fields with coutious

9.  Enter bin directory, copy playsms, playsmsd, playsmsd.php, playsmsd_start to directory default

    # cd /usr/local/src/playsms-x.x.x/bin

    # cp playsmsd playsmsd.php playsmsd_start /usr/local/bin/

    # cp playsms /etc/default/

    Note: please note the different between playsms and playsmsd

10. Look for rc.local on /etc and its subdirectories (usualy /etc, /etc/init.d or /etc/rc.d/init.d)

    Edit rc.local and put: 

    ”/usr/local/bin/playsmsd_start” (without quotes)

    on the bottom of the file (before exit if theres exit command). This way playsmsd_start 

    will start automatically on boot. 

    Note: you need ‘root’ access to do this

11  Browse http://localhost/playsms/ and login using default administrator user

    username: admin

    password: admin

12. At this point you should be able to login to playSMS web interface and manage playSMS

For example, I had an Ajax Calendar app that used Unixtime values to calculate which data to retrieve from a MySQL db. This worked fine on my dev server, whose server timezone was GMT, but when I transferred the code to my production server, which runs on E.T, it was not retrieving the correct data! This was a major pain to debug, as the code itself was fine of course, and was solved with a single line of code:

date_default_timezone_set(”GMT”);

Place this at the start of any script that has a dependency on the server timezone, and you can port your code to any server regardless of its timezone. If you don’t know your server’s timezone, date_default_timezone_get() will give it to you.

There’s a great forum post here, mentioning both methods – its well worth a look as the examples are simple and clear.

Quick example would be what we mentioned above, i.e. getting your date in the format of March 21st, 2009. Look how quick it is in MySQL compared to PHP:

SELECT DATE_format(olddate, ‘%M %D, %Y’) as newdate FROM table;

‘olddate’ is the name of your date field in datetime format, and ‘newdate’ is the new var representing the nicely and newly formatted date!

When getting the annoying error 1075 “Incorrect table definition; There can only be one auto column and it must be defined as a key” when trying to add a new primary key, this page has an awesome solution.

Using sprintf() to zerofill variables, handy like so:

$zeroball1 = $this->escape($result->ball1);
$zeroball2 = sprintf("%02d",$zeroball1);
echo $zeroball2;

Zend Framework and MySQL

For counting across rows, first check out the excellent official mysql page on row counting. Then to apply it to Zend framework, this is probably the best starting place for MySql select queries in Zend FW, and I check it regularly. Basically, to run a mysql query like SELECT `results`.`bonus`, COUNT(*) AS `counter` FROM `results` WHERE (draw = 0) GROUP BY `bonus`; you need the following in your model. Note the ‘counter’ => ‘COUNT(*)’ syntax…

$query = $db->select()  

->where("draw = $draw_val")

->from('results',array('bonus','counter' => 'COUNT(*)'))

->group('bonus');

For further and more detailed quality examples of Zend and MySql, this is good. Check out lars’ comment here on counting across multiple tables.