NotesBIT.com » Web & Scripts

Multiuser Phone Book system – Open Source – My First Release in PHP

Jay — Mon, 05 Apr 2010 17:40:05 +0000

I find it difficult to track my phone numbers as it is getting complex list. When I try my iphone, I find it difficult to get the right person as it contains one time occasional contacts, regular contacts and work related folks! It ran into 300+ entries. Some of them, it is hard even to find when it is needed. Hence, I started to write a small project in php and this is my first release on that. It will be revised further until I find a good standalone application. I tried to have it global Read Full Article (Click here)...

Permutation Function in PHP code.

Jay — Mon, 11 Jan 2010 03:58:31 +0000

What is permutation? I would like define before proceeding further. A permutation of the set of numbers {1, 2,…, n} is a reordering of these numbers. Possible arrangements of a set of objects in which the order of the arrangement makes a difference. Example: Determine all the different ways five books can be arranged in order on a shelf. I just wrote a simple set of functions in php. This will list all the 3 chars permutations of “abcdefghijklmnopqrstuvwxyz1234567890″ to Read Full Article (Click here)...

Apache : Mod_Rewrite and Regular Expressions

Jay — Wed, 04 Nov 2009 09:25:55 +0000

I guess I should start by describing a regular expression. (They aren’t too scary once you get to know them.) A regular expression is basically a small piece of code that checks for patterns. The pattern can range from a single character that matches to absolutely everything. Regular Expression Pre-qualifier… these definitions are how regular expressions are generally used in .htaccess files and though most definitions will be applicable globally, there are some that may not. Read Full Article (Click here)...

How to handle Basic PHP Sessions?

Jay — Fri, 16 Oct 2009 06:51:35 +0000

A session is a way to store information (in the form of variables) to be used across multiple pages. Unlike a cookie, specific variable information is not stored on the user computer. It is also unlike other variables in the sense that we are not passing them individually to each new page, but instead retrieving them from the session we open at beginning of each page. Call this code test_session_page1.php Read Full Article (Click here)...

Textpad Regular Expression sample.

Jay — Thu, 01 Oct 2009 05:23:18 +0000

Wiki gives regular expressions provide a concise and flexible means for identifying strings of text of interest, such as particular characters, words, or patterns of characters. A regular expression (often shortened to regex or regexp) is written in a formal language that can be interpreted by a regular expression processor, a program that either serves as a parser generator or examines text and identifies parts that match the provided specification. I have already posted my review about Read Full Article (Click here)...

Hosting Multiple sites on a single IP address using apache Mod_rewrite.

Jay — Sun, 27 Sep 2009 06:27:16 +0000

This is my notes, it will be refined very soon. Mod_rewrite, for those that don’t know, is a powerful module that allows you to handle incoming URI requests and more. This article will explain the use of and advantages of the MaxRedirects option. Web hosting companies that offer the mod_rewrite module should take note of these reasons to upgrade to the latest Apache release. Keeping your Web server up-to-date is a must. Hosting companies that do not offer the mod_rewrite module are Read Full Article (Click here)...

Apache/PHP: $_FILES Array is returning empty. How to resolve?

Jay — Thu, 17 Sep 2009 06:08:38 +0000

I came across the frustrating issue of the day: A file upload form that’s been working for a long time, suddenly fails. No file uploads work on the entire apache installation. Checking the drive space in the /tmp folder, even though GB is left, freeing up space reveals that if there isn’t a lot of free space left for /tmp, the $_FILES array just goes empty without further explanation. No useful error messages or anything. $ _ FILES[”$Varname”][”tmp _ name”]; What are the possible Read Full Article (Click here)...

How to Write a Wordpress Plugin – Sample Code

Jay — Wed, 26 Aug 2009 06:57:55 +0000

I wanted to write a plugin and came across an excellent site by Ronald Huereca that gives you good start on wordpress plugin. He gives a pdf down loadable file for wordpress plugn too. How to Write a Wordpress Plugin, written by Ronald Huereca is an extensive, twelve entry series on the process of creating your own Wordpress plugin. Every step is covered, from “Seven Steps for Writing a Wordpress Plugin” all the way down to adding ajax to your plugin and releasing it. This is an Read Full Article (Click here)...

How did I make Picture Slide Show in Wordpress, PHP?

Jay — Fri, 21 Aug 2009 16:59:21 +0000

I saw similar effects in yahoo pages and few other sites. I wanted to have similar slide show at my site and made few search, reviewed php, ajax. Finally got a good handle at Dynamic Drive Step Carousel Viewer v1.6.1. Luckily, I have a placeholder thumbnail at my wordpress meta data which can be mapped with this step carousel. What is a Step Carousel Viewer v1.6.1? It displays images or even rich HTML by side scrolling them left or right. Users can step to any specific panel on demand, or Read Full Article (Click here)...

MYSQL : Tuning / Optimizing my.cnf file

Jiltin — Sun, 16 Aug 2009 23:27:11 +0000

In my new server, I Have to do some fine tuning of MySQL 5 and here is what my.cnf file looks like for a 2GHz machine with 12GB of memory. Below are notes on some of the important variables, I took down while tuning the config file. 1. query_cache_size: * MySQL provides one feature that can prove very handy – a query cache. In a situation where the database has to repeatedly run the same queries on the same data set, returning the same results each time, MySQL can cache the Read Full Article (Click here)...

Wordpress Firestats Tips & Tricks: How Do I Find What Searches Are Made On The Post?

Jay — Tue, 04 Aug 2009 12:14:43 +0000

I have been analyzing the firestats data to extract the searches made on the internet that lead to my blog postings. It is excellent that firestats plugin records all the searches and the connected postings. Here are my findings Firestats Hits are stored in a table wp_firestats_hits and the urls, search phrases are stored in wp_firestats_urls. I just combined these tables along with wp_firestats_useragents to get the summary table called search_summary. Here is the simple query. SELECT Read Full Article (Click here)...

Most Recently Used – Sample Visual C++ 2003 Program

Jay — Tue, 04 Aug 2009 05:59:53 +0000

What is MRU? It stands for Most Recently Used Documents. One of the efficiency added to any program over a decade ago is the Recent Documents list.At the bottom of the File menu, you’ll see your four most recently-opened documents listed; you can click one of them to open the file directly. Looking at customer data, it becomes clear that this is one of the most broadly-used features in our daily routine. And it’s easy to see why it’s so popular; many people use the same Read Full Article (Click here)...

Rijndael – Advanced Encryption Standard – Sample Visual C++ 2005 Program

Jay — Tue, 04 Aug 2009 05:27:33 +0000

I have provided a sample Rijndael encryption / decryption sample from my old visual c++ code. You can easily enhance the program to 2008 version. Here is the brief introduction from Wikepedia: Rijndael Advanced Encryption Standard. In cryptography, the Advanced Encryption Standard (AES) is an encryption standard adopted by the U.S. government. The standard comprises three block ciphers, AES-128, AES-192 and AES-256, adopted from a larger collection originally published as Rijndael. Each AES Read Full Article (Click here)...

XCACHE – The Great PHP opcode Performance Tool For Wordpress Bloggers

Jiltin — Fri, 31 Jul 2009 06:09:16 +0000

Recently, I noticed that the response from my blog was very slow when I started getting 1000+ user hits daily. It was hosted on a Linux platform – dedicated Pentium core duo laptop processor with 2 GB memory. Hence, I upgraded to Power edge quad core processor with 12 GB memory. After I migrated, I found the response was not so great until I realized root cause of the issue – Performance tuning! For php, xcache is one of the best tools to accelerate the blog performance. You can Read Full Article (Click here)...

Wordpress – Mysql Performance tuner, a free Good Optimizer

Jiltin — Thu, 30 Jul 2009 13:55:13 +0000

Even after upgrade of my server to poweredge with quad core and 8GB memory, I did not see any improvement on my blog performance. In my new server, I have also installed a trial oracle applications and noticed a substantial performance in oracle applications response while it was developed over high memory hog java! As an expert in oracle applications and its architecture, it took no minute to understand that I need to look at the performance tuning of my blog on the LAMP components such as Read Full Article (Click here)...

The Importance Of The PHP Configuration File – Apache, Wordpress and Firestats.

Jiltin — Fri, 24 Jul 2009 07:15:01 +0000

One of the most powerful features of PHP is the ability to customize its behavior through a configuration file. In this first article, we’re going to cover some of the ways the php.ini file can be used and how it might help you. The second article will outline in detail many of the more frequently used directives of the php.ini file. Using the PHP configuration file can make administration of PHP as simple as administration of Apache! Depending on your web server preferences, that could Read Full Article (Click here)...

php – reference

Jiltin — Wed, 08 Jul 2009 05:50:46 +0000

This Post will be continuously updated with comments, help text about php and the usage: Question: What the difference between include() and include_once() was. php.net says include_once only includes a file once. Does this mean if I use include() I can access variables from the included file anywhere in my script? Answer:include_once() will not include a file that has already been included. include() will include a file every time. include_once() is useful if you have php scripts which Read Full Article (Click here)...

Sendmail sending as host.domain.com, I want it to be from just domain.com, How do I configure?

Jiltin — Thu, 25 Jun 2009 22:53:53 +0000

Currently, after I setup the sendmail, the emails are going as user@host.domain.tld (or user@host.domain.com) instead of user@domain.tld (or user@domain.com). How do I configure the sendmail so that the mails reach as user@domain.tld? Answer: Edit /etc/mail/local-host-names or create a /etc/mail/local-host-names if you do not have one Add yourdomain.com like this as your first entry and have the other hosts from the next lines # local-host-names – include all aliases for your machine Read Full Article (Click here)...

Good security measures to keep WordPress safe – How to Secure Wordpress?

Jiltin — Wed, 24 Jun 2009 08:24:23 +0000

What if the WordPress Blog Got Hacked ? I have reviewed the security measures that Daniel suggested and also searched for plugins that could help. The following are the plugins I found that can make WordPress more secure. 1. Limit Login Attempts : This plugin blocks a user for 20 minutes after he enters wrong password 4 times (default values, can be changed). It is good way to avoid Brute Force attack . 2. Sabre :If you own a WordPress powered blog where users can register freely and see a Read Full Article (Click here)...

Free Text messaging,within USA, subscription based, APIs available

Jiltin — Tue, 23 Jun 2009 21:37:06 +0000

TextMarks Mobile Application Services (http://www.textmarks.com) Platform has access to powerful text messaging functionality for integration into your existing and new web and enterprise applications. TextMarks Blog serves to open up the channels of communication between TextMarks and people, to keep you informed and help you make the most of our text messaging services. Want to let your blog readers subscribe to your blog’s RSS via SMS? Whether it’s because somebody interacted with Read Full Article (Click here)...