Free PHP Webmail Application: T-dah

T-dah is a free PHP webmail application which is built from the well-known Uebimiau script & offers a slick interface.
It can be up & running in a few minutes on any PHP (4 or 5) enabled server as no database is required.
The application uses the POP3 protocol & can be configured to use SMTP, PHP mail, Sendmail or Qmail for sending e-mails.

T-dah comes with several modules like:

• event calendar
• group chat
• addressbook
• folder management

It uses TinyMCE WYSIWYG editor for creating new e-mails, has an integrated search & can be translated into any language with the "language files" support.

Requirements: PHP
Compatibility: All Major Browsers
Website: http://www.tdah.us/
Backend Demo: http://uebimiau.tdah.us/
Backend Demo - User-Pass: User: demo - Pass: demo
Download: http://sourceforge.net/projects/t-dahmail/

Free PHP Uptime Monitor Script: phpWatch

As we all experience, every hosting account or server sometimes fails, no matter how good the hosting company is. And, this can be accepted as normal when it is within the limits.
For better reacting to the downtimes, analyzing the health of the web application & the environment it is hosted on, uptime monitoring is a working solution.

phpWatch is a free PHP uptime monitoring script that can watch unlimited number of websites and send notifications via e-mail or SMS (for US phones).
With an Ajaxed interface, new monitors & notifications can be easily configured. And, once the cron job / scheduled task -that pings the servers in desired time intervals- is set, the script is ready to go.
phpWatch also offers an API which lets other applications to query the monitored services, get the statistics and use the notification system for sending SMS and e-mail alerts.

Requirements: PHP, MySQL
Website: http://aaron-rosenfeld.com/2008/08/28/phpwatch-relea...
Demo: http://aaron-rosenfeld.com/phpWatch/demo

Analyzing PHP Performance: PHP Quick Profile

Firebug is the most popular tool for analyzing HTML, CSS & JavaScript based webpages. Now, there is PHP Quick Profiler (PQP), which can be called as Firebug for PHP.
It is specially focused on analyzing the performance of PHP codes. With a beautiful interface, PQP can:

• log memory usage
• display the number & sizes of included files
• show page execution times
• log database queries

PHP Quick Profiler is not a plug & play solution as every project may have a totally different structure. But, by following the setup information & the example provided, it is easy to integrate.
To see how functional it is, you can check the demo.

Requirements: No Requirements
Website: http://particletree.com/features/php-quick-profiler/
Demo: http://particletree.com/examples/pqp/