Category Archives: Coding

All kinds of Programming.

Php array of iso 639-1 language codes and names

By | November 22, 2012

Here is a php array containing the language codes and language names as specified by the iso 639-1 standard. Useful when . <?php /** ISO 639-1 Language Codes Useful in Locale analysis References : 1. http://en.wikipedia.org/wiki/List_of_ISO_639-1_codes 2. http://blog.xoundboy.com/?p=235 */ $language_codes = array( ‘en’ => ‘English’ , ‘aa’ => ‘Afar’ , ‘ab’ => ‘Abkhazian’ , ‘af’… Read More »

Php curl tutorial – making http requests in php

By | November 6, 2012

Curl According to the official website. curl is a command line tool for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, Gopher, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMTP, SMTPS, Telnet and TFTP. curl supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form based upload,… Read More »

Generate code39/isbn barcodes in php with mpdf

By | May 27, 2013

Barcodes Barcodes are used in various business class applications to print information in encoded format such that it can be read later by barcode reading devices. Common places to see barcodes are product covers in shops, membership cards and documents like invoices etc. As php is now increasingly being used to develop such applications, barcodes… Read More »

Python program to fetch domain whois data using sockets

By | October 20, 2012

Whois The whois information of a domain name provides various details like registrar, owner, registration date, expiry date etc. The whois information is provided by the corresponding whois servers of the registrars. The first step is to contact whois.iana.org which provides the actual whois server of a domain name. Next the particular whois server is… Read More »

How to program UDP sockets in Python

By | July 28, 2020

UDP sockets UDP or user datagram protocol is an alternative protocol to its more common counterpart TCP. UDP like TCP is a protocol for packet transfer from 1 host to another, but has some important differences. UDP is a connection-less and non-stream oriented protocol. It means a UDP server just catches incoming packets from any… Read More »

Raw socket programming in Python on Linux

By | July 31, 2020

Raw sockets Raw sockets allow a program or application to provide custom headers for the specific protocol(tcp ip) which are otherwise provided by the kernel/os network stack. In more simple terms its for adding custom headers instead of headers provided by the underlying operating system. Raw socket support is available natively in the socket api… Read More »

Syn flood program in perl using raw sockets (Linux)

By | November 28, 2012

Syn flood program sends out a large number of syn packets to a destination host such that the destination host gets under heavy pressure to reply to all of them and hence consumes huge amount of memory/cpu resources without any real purpose. This causes the services of the remote host to become unavailable to legitimate… Read More »