PHP Web Development Tutorials

PHP Web Development Tutorials and Articles
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Cookies have long been used in PHP scripts, and are a very useful function. But what exactly are cookies? Maybe you have used then, but you still don't know exactly what they are. Or you are completely new to cookies? It doesn't matter, because in this tutorial I will show you exactly what cookies...
This class is a wrapper for array's that allows you to use oop to create and manage an array Background This class is inspired by Java and C#'s array class. The Code If you'd like to use oop to manage an array this class is meant to provide a data type of sorts for that effort.
I am listing tips to improve your PHP code performance. There are few whom you can call as debatable but overall the code performance will surely increase. Following tips are written to save time and development cost (includes memory too) If a method can be static, declare it static. Speed...
Many times it is required for us to calculate the time remaining and display it in a very understandable format like days,weeks,hours etc. Here is a function i wrote to do the same. //FUNCTION FOR TIME LEFT function time_left($integer) { $seconds=$integer; if...
PHP can be used for a lot of different things, and is one of the most powerful scripting languages available on the web. Not to mention it's extremely cheap and widely used. However, one thing that PHP is lacking, and in fact most scripting languages are, is a way to update pages in real-time,...
Building web applications with membership management is one of the most frequent tasks that every programmer does. Managing membership data, such as username, password and the member's profile with sessions in PHP is the easiest and simplest solution. Sessions stores data about a particular...
Creates a class that acts as a string wrapper similar to Java and C#. Background Php doesn't do types so I created a class to act as a wrapper to provide a faux type for strings The Code The code is designed so that you can create text variables which have there own methods that you...
A Comma-Separated Values(CSV) file stores information in a list with a comma between each item. A CSV file may consists of any number of records. CSV file format is widely supported by scientific applications, and various consumer and business applications. There are a few variations where...
Here's the code to read ID3 tage from a MP3 file <?php //Reads ID3v1 from a MP3 file and displays it $mp3 = "1.mp3"; //MP3 file to be read
EXIF stands for Exchangeable image file format is standard by which metadata is stored in image & sound file formats, these are sometimes added by digital camera / software / or manually added by a user. These standards metadata tags help people track / store info, for example Flickr shows the...
These days, i'm kinda into hot stuff each day but kinda not having time to document all those. So here i got a little time, let's skip the bla bla. What exactly is real-time updating means? Have you ever seen how php output is shown on the browser? No matter what length code or how many loops...
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; $a=5; here the total item count is 4, but when you use count() function you get 3. So I wrote a small function which counts array elements, even recursively. ...
Introduction The RGB color model is an additive model in which red, green, and blue (often used in additive light models) are combined in various ways to reproduce other colors. The name of the model and the abbreviation ‘RGB’ come from the three primary colors, red, green, and blue and the...
Introduction ROT13 ("rotate by 13 places", sometimes hyphenated ROT-13) is a simple Caesar cipher used in online forums as a means of hiding spoilers, punchlines, puzzle solutions, and offensive materials from the casual glance. ROT13 has been described as the "Usenet equivalent of a...
While working with currency calculations, we often require to round a number to the nearest 10 or the nearest 50, like 407 should be 410. I've written a function which will do exactly that, it requires two parameters the number to the round, and the integer to be rounded to. The function is like...
PHP is arguably the most popular scripting language for Web sites. This popularity comes with a price, however, and that is increased attention to various vulnerabilities in PHP itself and in the plethora of Web applications written in PHP. The security features built into PHP are weak, and the...
Introduction Actually, this has been taken from my blog( and I re-updated the article for Go4expert. I am myself newbie to programming but still I have included here what I myself practice. This is just a basic guide to prevent basic flaws in your PHP based web apps....
The code snippet below will pick up a random image from the server and sends it to the browser. Try it out. <?php if($_GET){ $folder=$_GET; }else{ $folder='/images/'; } //path to image dir
This functions solves the problem of always writing the same code to check if a get or post request is set or not. Background I created this because I was tired of the extra code needed just to see if a request variable has the array key set or not. I don't want to use error suppression...
Shell Sort function in PHP <? function shellsort($elements,$length) { $k=0; $gap=(int) ($length / 2); while($gap>1) { $k++;