Example of a packet sniffer is Wireshark. Packet sniffers pick up the packets going in and out of a system and analyse them and present them to user for further analysis. In this post we are going to code a simple packet sniffer in php. The basic theory this packet sniffer is that , raw… Read More »
Php functions like zip_open return an error number if they fail. To get the corresponding error message from the error number , use the following function. The list of Zip constants is available here : http://php.net/manual/en/zip.constants.php Last Updated On : 24th November 2011
When a browser makes a request to a php script, the browser sends some http headers which can look like this : The php script under request , may want to access these http headers. PHP has a method getallheaders() which provides these headers. So the code should be like this : and the output… Read More »
In this post, I am going to write HTML and CSS Validators in Ruby and PHP. W3C HTML and CSS Validators basically check the validity of the URL supplied to it. It is always a good idea to write completely valid HTML and CSS for several reasons. The W3C HTML Validator checks the markup validity of… Read More »
In this article we are going to login into Google Adsense and retrieve earnings. Google Adsense now has a new interface and so needs a different kind of coding. In this example we shall fetch “yesterday’s” earnings sitewise. Create a Report to be fetched : First open the sitewise report in the Performance Tab in… Read More »
PHP has a useful function called dns_get_record that can be used to get different types of records for a give domain , very easily. Nameserver – NS Records : A Record – IP address : Another simple method to get the A record or IP address of a domain name is to use the function… Read More »
If you have used codeigniter or some mvc php framework then you might be aware of urls like www.yoursite.com/index.php/class/method/param1/param2?a=b&c=d or www.yoursite.com/class/method/param1/param2?a=b&c=d if you use mod rewrite to add the index.php The htaccess code could be like this : The above kind of urls need to be parsed inside PHP to extract the class name ,… Read More »
The at sign (@) is an error control operator in PHP. You can suppress errors, warnings and notices using @ operator in PHP. It is quite common to prefix function calls with @ to suppress errors like this – In my opinion, you should never make use of @ in your code regardless of the… Read More »
Note: The Operating System in use is Ubuntu Linux (11.04) My Gem Environment – After spending quite sometime to find the correct way to install my ruby gems in the HOME directory instead of the system-wide directory (/usr/local/lib/ruby/gems/1.9.1) , i found that the solution was indeed quite simple – You can even put “gem: –user-install”… Read More »
In this tutorial, I am going to show you a simple way to write a Hit Counter script in PHP to save and display the number of visits to your website. We will basically store and increment the hits in a file, that can be used to display the total hit count as well. The… Read More »