Posted by Olaf
December 7, 2009
If you need to spam protect your contact, comment or any other public form you should think about using a CAPTCHA image. A CAPTCHA image is an image with a random text which spam bots can’t read. The visitor need to enter that text into a form field and only if there is a match [...]
Posted by Olaf
October 26, 2009
MailChimp is a great mailing list provider with a powerful API system. This tutorial will guide you on how-to integrate the subscription process with other forms on your website.
Posted by Olaf
January 31, 2009
If you need to follow redirects within your php code using Curl and the open_basedir is set you came into some trouble. If you disable this directive all your directories with a 777 permission are not safe (if one or more website on the same server has some security issues). If you don’t have additional [...]
Posted by Olaf
July 30, 2008
These days I needed a script to backup only a part of a customers website using a CRON. Most of the control panels I know allow only a complete website backup and this is not what I needed. While planning the script, I thought about a solution for webmaster without full SSH access to their [...]
Posted by Olaf
March 14, 2008
There are several PHP scripts and classes to process PayPal payments using their native IPN (Internet payment notification) feature. Because the whole process is based on the data you need to send via a web form to the PayPal payment processor these script look very similar. The payment / notification process is shown via the [...]
Posted by Olaf
October 11, 2007
FTP hosting is often much cheaper than regular web hosting. The upload with an ftp client is for sure the most common way, but could be a problem for people behind a firewall or without enough rights (capabilities) to install a FTP client. For those a upload via a web form is the best solution. [...]