MySQL can be used to do some string replacements rather using any programming languages. The following is used to replace space with hyphen in list names 

UPDATE list SET list_name =
REPLACE(list_name, ' ', '-')
WHERE list_name LIKE '% %';

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User registration form is a good example for this validator. Checking the username exists or not.

Db_NoRecordExists validator helps to achieve this

$username = new Zend_Form_Element_Text('username',
 array('label' => 'Username',
     'required' => true,
     'filters' => array('StripTags', 'StringTrim'),         
     'validators' => array('NotEmpty', array('Db_NoRecordExists',false,array(
  'users_table','username_column', 'messages' => array( Zend_Validate_Db_Abstract::ERROR_RECORD_FOUND => '%value% already exists')
 )))));

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If your Putty Connection Manager doesn't load Putty inside the Manager then do this :

1. Go to View -> Connection Manager
2. Right Click in side the right panel -> create a Database ( give any name )

That will create SSH and Telnet folders

3. Right Click on SSH folder and then New -> Connection Manager
4. Add Host Name and select SSH protocol
5. File -> Save All Databases

You are done now.

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System commands can be executed from PHP using exec command.
eg:

$out = array();
$command = "memcat --server=10.10.10.10 ITEMS > /tmp/items.txt";

exec($command, $out);

The $out variable would hold the output of the command. If there is any issue with executing a command , have the command with path.

eg:
$command = "/usr/local/bin/memcat --server=10.10.10.10 ITEMS > /tmp/items.txt";

exec($command, $out);

for further info: http://www.php.net/manual/en/function.exec.php

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