Checks legitimacy of credit cardPutting [validcard] into a template displays "T" or "F", depending on the value of the number in accountNum. If the accountNum is a legitimate credit card number for the specified card type (according to the algorithm used to create such numbers), then "T" indicates it is good. Conversely, "F" indicates it is bad. This does not call the bank to verify funds on the card -- it merely does a simple numeric checksum to verify the number is consistent with a credit card number, and not a randomly punched in string of numbers. You would use this tag to validate the credit card field on your order form BEFORE writing it to the shopping cart order file. If it evaluates to F, you can display an alert and ask the customer to please double-check the credit card before continuing.
|accountNum||(Required) The credit card number. Any extra spaces or non-numeric characters will be ignored.|
|card||(Optional) Set card to the names of the credit cards that are allowed, separated by space or +. Possible values are ALL, IGNORE, VISA, MC, AMEX, DISC, JCB, DINER. If not specified, then ALL cards are allowed. IGNORE tells it to always pass the card regardless of its checksum.|
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WebDNA applications...Tips and Tricks
A list of user-submitted tips ...AWS Raw WebDNA LAMP-Plus WebServer
Amazon Web Services (AWS) README for Machine Image ID...WebDNA Modules
A list of the currently available modules...[biotype]
BioType is a behavioral biometrics WebDNA function based on ADGS research and development (from version 8...Technical Change History
This Technical Change History provides a reverse chronological list of WebDNA changes...
Highlights matching words with boldface HTML tags...[table]
[table] allows you to quickly create a temporary 'in line' database that is local to the template and not part of the global database cache...[authenticate]
WebDNA provides a few options for password protecting your pages...[xmlparse]
Enable the WebDNA programmer to input XML data into a WebDNA variable...[capitalize]
Capitalizes the first letter of all words in a sentence...[shell]
[shell] is a way to use the command line with your webserver...