Php Perl Visual basic Classic asp Developer

My freelance programming services.

I'm christopher sagayam, I have about 9 years experience in programming using perl php mysql Visual basic classic asp etc.

I can modify existing scripts or create new scripts from scratch.

Here in this website I have listed my most recent projects to date.

I can custom program moodle, oscommerce, drupal modules.

I can create custom vtiger modules and tabs.

I have done some projects involving customization of the geodesic classifieds scripts.

I have good experience in classic asp scripts too.

I am adept at Mysql as well as MS SQL databases.

I have listed below some of the most recent programming projects that I have completed

Custom modifications on an complex asp customer management system.
(This project was done using classic asp and ms sql database)
1. Integration with paypal IPN payment system.
2. Clients can post new vacancies based on their jobs quota.
3. Search was improved so that vacancies results appear fast from the database.
4. A new company registration and login page were added.
5. Changes to the resume upload section.

Modifications to the geodesic classifieds script.
(This project was done using complex php classes and mysql database)
1. Creating a php book ISBN search.
2. ISBN searched using google books.
3. Book data automatically retrieved including images using php curl google books api.
4. The image upload step was bypassed and combined into the first step itself.
5. A cyclic swap book rotation mysql function was done.

Modifications to the aceproject project management software.
(This project was done using classic asp and ms sql database)
1. Complex modifications were done to this excellent aceproject script.
2. Facility was added to import external assignment data in CSV format.
3. Auto populate sales person data based on company chosen.
4. Creation of PDF invoices using asp.

Modifications to the opencart php shopping cart software.
(This project was done using opensource php classes and mysql database)
1. Discount feature was modified to have a price value also.
2. Ability to create random coupon numbers using php random function.
3. Opencart script was modified so that it can be used for selling prepaid phone cards.
4. Registration fields were changed and custom fields were added.

Modifications to the oscommerce php shopping cart software.
(This project was done using opensource php classes and mysql database)
1. Product attributes pricing was made to work properly.
2. Orders.php and order.php class files were edited.

XML export of oscommerce php shopping cart software products.
(This project was done using opensource php classes and mysql database)
Latest top 5 purchased Products and Product attributes Were exported into xml.

Custom modifications to the nicecoder indexu php scripts.
(This project was done using opensource php classes and mysql database)
Complicated modifications were done to the indexu script.

Custom ms access 2007 vba programming.
(This project was done using visual basic for ms access)
VBA script was written to create a custom ms access form button which deletes specific rows of data.
VBA script was written to create a custom ms access form button which creates additional custom column fields in existing ms access database based on specific algorithm.

Recaptcha.net installation.
(This project was done using perl and recaptcha.net api)
The Recaptcha.net public key was installed in the html form page using javascript.
The Recaptcha.net private key was embedded in the perl cgi script file.

Spidering data from review website.
(This project was done using php and curl and regex)
A php spider script was created using php CURL which will spider a review website and using complex preg match patterns will retrieve only the data required.

Vtiger custom tab addition.
(This project was done using php and vtiger modules)
A new tab was added in the Vtiger Contacts page.

Custom modifications to Moodle Scripts.
(This project was done using php mysql and Moodle modules)
Custom profile fields in moodle were added.
Default profile fields in moodle user registration such as email, first name, city etc were edited.
And most importantly new custom user profile fields were added and were ordered in a specific way.
The custom date profile field was added and also date validation was done in moodleform class api.