PHP Web Development Tutorials

PHP Web Development Tutorials and Articles
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Haversine Formula The haversine formula is an equation important in navigation, giving great-circle distances between two points on a sphere from their longitudes and latitudes. It is a special case of a more general formula in spherical trigonometry, the law of haversines, relating the sides...
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There are times when we require to put a calendar in some web appplication of ours,writing the code to generate a calendar from scratch is painstaking and waste of time. So PEAR comes to rescue with its Calendar package. The package gives a ton of features, below you'll find a simple program to...
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Management of files Manipulating files is a basic necessity for programmers and PHP gives you a great deal of tools for creating, uploading, and editing files. When you are manipulating files you must be very careful because you can do a lot of damage if you do some errors. Common errors include...
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Sometimes we need to find the number of items, located inside an array.Let's take this array as example, $a=1; $a=3; $a=4; $a=5; here the total item count is 4, but when you use count() function you get 3. So I wrote a small function which counts array elements, even recursively. ...
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If you have PHP4 working on your server, and have heard that PHP5 may screw up things. Here's how to have both running alongside. #!/bin/sh # PHP5 CGI Installer for cPanel/WHM Servers VERSION=5.0.4 cd /usr/src wget -O php.tbz2...
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Morse code is a method for transmitting information, using standardized sequences of short and long elements, for the letters, numerals, punctuation and special characters of a message. The short and long elements can be formed by sounds, marks or pulses, and are commonly known as "dots" and...
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All like to create PHP scripts as fast as possible, and we try to take any shortcuts that we have. Here are few tips to speed up php code Tip -1 Using a good editor can really save you time. If you're still stuck on using Notepad to edit your PHP scripts, switch right now. There are...
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This is a guide, you will not have a stand-alone effect or file by the end of this guide, but you will - hopefully - have an understanding of the Unix timestamp that allows you a powerful form of managing your PHP applications. Note: This guide expects the reader to have an understanding on how...
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Exceptions are used to change the normal flow of a script if a specified error occurs.Exception handling is used to change the normal flow of the code execution if a specified error (exceptional) condition occurs. This condition is called an exception.when an exception is triggered the current code...
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When it becomes necessary to compare two or more text files in UNIX, most developers reach for the diff program. This program, included by default in almost all UNIX distributions, compares the files line by line and displays the changes between them in a number of different output formats. ...
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PHP is arguably the most popular scripting language for Web sites. This popularity comes with a price, however, and that is increased attention to various vulnerabilities in PHP itself and in the plethora of Web applications written in PHP. The security features built into PHP are weak, and the...
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This script adds some basic math functions to php allowing you to get percentages, ratios and other fraction based functions. Background I created this because I had a need for some math functions that php does not provide. I also made them for my math class to save on time from having to do...
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This time I took a bit of a change from the usual subjects I write, not a big change though. The reason for writing this set of articles (More to come and there's another beginners one as well) is because I felt that there isn't a proper or complete guide written for the pure beginners to start...
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How To Find Similar Sounding Words Let say a condition where we wanted a utility that finds a matches of words which sounds all same. For example, stupid/stpid/stuuupid/sstuuupiid would all have the same soundex code, S313, Soundex is a phonetic algorithm which computes a soundex value for each...
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PHP being the most popular & easy to deploy language for web applications offers a large number for functions for sorting compared to other languages like Perl, Python, etc which hardly have a few basic functions which have to be extended by the programmer. PHP reduces coding time by providing...
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Allows you to include dynamically a single file, a list of files or a whole directory. No more tedious include statements. Background This is designed to be similar to Java's package system but instead uses a directory, file/s or */ALL, and include type(INC, IN_O, REQ, REQ_O). The reason is...
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