[Adding an array to database]

Also, you can store arrays in a database with JSON (req PHP 5.2+ or JSON lib).

 

$array = array("some", "random", "text");
$sql = "INSERT INTO table (column) VALUES ('".mysql_real_escape_string(json_encode($array))."')";

 

And to retrieve the value back into an array:

 

$result = mysql_query("SELECT column FROM table WHERE ID=1");
$row = mysql_fetch_array($result);
$array = json_decode($row['column']);
print_r($array);

[Suggest me an editor]

PSpad is pretty good - it also has the FTP support like DreamWeaver.

 

[How to test your code on all browsers?]

You can download a standalone version of IE6 here:

http://browsers.evolt.org/download.php?/ie/32bit/standalone/ie6eolas_nt.zip

 

[Dynamically creating doc file]

There are lots of zipping examples online:

http://www.devco.net/archives/2005/05/24/creating_zip_files_with_php.php

http://www.granthinkson.com/2005/07/01/create-zip-files-dynamically-using-php/

 

Creating a Word doc might prove to be more difficult unless you're hosting on Windows:

http://stackoverflow.com/questions/124959/create-word-document-using-php-in-linux

http://www.joelonsoftware.com/items/2008/02/19.html

 

[wordpress problem (want to add new php file )]

Well, you could use a plugin to allow inline execution of PHP on pages, or you can create a page template in your themes folder.