Author Archives: Hoan Huynh


About Hoan Huynh

Hoan Huynh is the founder and head of 4rapiddev.com. Reach him at hoan@4rapiddev.com


Display Site Down Or Maintenance Message In ASP.NET Web Application Posted by in Tips And Tricks | Leave a comment

When you’re making big changes or performing maintenance on a site that requires hours or days to finish, you should bring down your ASP.NET web application in a convenience way and display Site Down or Maintenance message to your visitors. Continue reading

JQuery Create Textbox With Count Down Limit Characters Posted by in Javascript | Leave a comment

Meaning user no longer be able to input text after hitting a specified maxinum characters (including spaces). And if the length of the string in the input field is greater than the max value; in case use copy & paste … Continue reading

Monitor Real Time Visitors, Viewing Pages And Traffic Sources In Google Analytics Posted by in Internet | Leave a comment

Google Analytics has published a new version and Real-Time is a new and great feature in there which you can access by clicking Home on the top menu then click on Real-Time on the left menu. Continue reading

WordPress View Large Image Without Leaving Current Page Posted by in Internet, Tips And Tricks | Leave a comment

In almost WordPress themes, especially with default WordPress themes (twentyeleven, twentyten, etc); when click on a particular image to view the original or large version of the image you have to leave the current page and be redirected to another page with just an image. Continue reading

When we need to implement CAPTCHA Posted by in Tips And Tricks | Leave a comment

In order to prevent spam, cheating, bot and automated submition script attacks; a CAPTCHA must be presented to the user every time a particular form is performed and the user must successfully pass the CAPTCHA each time they fill out the form. Continue reading

Implement Google Captcha (reCAPTCHA) With PHP Posted by in PHP | Leave a comment

Before displaying Google Captcha (reCAPTCHA), you need to Create a reCAPTCHA key by providing a domain name via http://www.google.com/recaptcha/whyrecaptcha then save the Public Key and Private Key somewhere to configure your application. Continue reading

PHP Copy Entire Directory To Another Directory Posted by in PHP | Leave a comment

This is a PHP function that copy an entire specified directory/folder includes its sub directories/folders and files to another folder/directory. Continue reading

Facebook Timeline And New Design For Pages Posted by in Internet | Leave a comment

On March 30, 2012, all Facebook Pages will get a new design. This significant affect the way we’re managing and developing the current Facebook Pages and new Facebook Pages.
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PHP Delete File Function Posted by in PHP | Leave a comment

This is a PHP function delete a specified file when it becomes unnecessary such as temporary file, log file, back up file, old file, etc. Continue reading

Save Table Structure Changes When Remote Access To SQL Server Posted by in SQL Server | Leave a comment

When remotely connect to SQL Server and edit structure/design of a particular table, it doesn’t allow you to save the changes although it works fine if connect directly to the database server. Continue reading