Tips and Tricks

A list of user-submitted tips & tricks

searching
native SQL
databases

Cloning a Record
Export data to Excel
Find duplicate records
Database backup
shopping
browser info

AJAX and WEBDNA
reCAPTCHA code
Setting a 30-minute Cookie
technical

ImageMagick
PayPal gateway
Paypal IPN
Check the Federal Government's Social Security database
WebDNA interaction with zip
text manipulation

Annoying character on writefile
Do you hate updating the copyright notice at the bottom of all your pages?
Extracting the first sentence out of a block of text
Formatting a long list in a table
How to keep the text variable after a function has finished
Removing whitespace
Spaghetti code
miscellaneous

How to setup CODA to work with WebDNA?
Calculating Standard Deviation
How to create a RSS feed
Using a simple Array of Variables with [interpret]
Write Once Use Many
files & folders

File upload example
dates & times

How old am I?
How many working days?
Redefining [date] & [time] to match your time zone
showing & hiding

Hideif on IP range
passwords

Handling credit card numbers
random password-generator code
xml

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[biotype]

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Related Readings:

WebDNA interaction with zip

I have a project where I'm allowing several people to upload images...

How old am I?

You want to express an age in years given the dob (mm/dd/yyyy) and today's date...

reCAPTCHA code

reCAPTCHA helps prevent automated abuse of your site (such as comment spam or bogus registrations) by using a CAPTCHA to ensure that only humans perform certain actions...

random password-generator code

Generate a random alpha-numeric string...

Handling credit card numbers

Encrypting the credit card numbers does the job quite nicely...

Using a simple Array of Variables with [interpret]

The [interpret] context is very powerful command in the hands of a skilled WebDNA programmer...