Miscellaneous Stuff

Regular Expression Tester: This is a little page I put together to test out regular expressions. It uses PHP's pearl compatible regular expressions functions. Click here to learn more from the PHP site.

Regular expressions are used to find certain patterns in a string of text. (learn more here). For example: when someone signs my guestbook a regular expression is used to remove most html tags (text between "<" and ">"). I also use regular expressions in the guest book's swear word filter.

Email Injection Attempts: Since September (2005) my contact page script has suffered an onslaught of email injection attacks. For this reason I have created a log file of all posts to my mailform scripts. I have also created the linked page which displays the date-time, ip address, and bcc'ed email address of the failed attempts (log file entries from legitimate use of the contact page form are NOT displayed). For more information on email injection read these articles at anders.com and Secure PHP.

*Web Page Profanity Filter: I was reading an article the other day (on-line). It was interesting but contained a massive amount of profanity. I though, "Too bad I can't apply my guest book swear word filter to this thing." So, I wrote this script to do just that. It applies the filter that I use on my guestbook to a user specified Web page. *Disclaimer: I cannot guarantee that this script will filter out all objectionable material from any particular Web page - use with your own discretion.