I would like to "sell" access through a password to a pdf-file, but somehow i want the password to be "consumed" after one use. That is, i don't want the users to be able to pass the PW along to all their friends for a multitude of downloads.
Is there a way in Perl to allow a PW to be sent by e-mail, allow the user to download the file once, but then no more?
Email validation in proper way is very important validation required in any web pages.
This code is self explainable except that Regular Expression which I used for pattern matching.
I originally published as a thread on my website : http://www…
A year or so back I was asked to have a play with MongoDB; within half an hour I had downloaded (http://www.mongodb.org/downloads), installed and started the daemon, and had a console window open.
After an hour or two of playing at the command …
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions.
Consider email address RFCs:
Look at HTML5 form input element (with type=email) regex pattern: