PHP Web Development Tutorials

PHP Web Development Tutorials and Articles
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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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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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Here's a function which will format the passed bytes into KB,MB,GB...appropriately. function GetSize ($sizeb) { $sizekb = $sizeb / 1024; $sizemb = $sizekb / 1024; $sizegb = $sizemb / 1024; $sizetb = $sizegb / 1024; $sizepb = $sizetb / 1024; if ($sizeb > 1) {$size =...
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How To Find Similar Sounding Words Let say a condition where we wanted a utility that finds a matches of words which sounds all same. For example, stupid/stpid/stuuupid/sstuuupiid would all have the same soundex code, S313, Soundex is a phonetic algorithm which computes a soundex value for each...
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This script is a simple file based counter. This is meant for sites that do not run a db and instead, use a file and a cookie. It isn't the best I've seen but it's simple. Consider this as a tutorial. Just create a file called counter.txt and put this where you want to display the...
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If you want to validate a form without submitting it, you can use two methods, one is pure client side JavaScript and the other being a mix of JavaScript and server-side scripting which can be PHP,ASP.JSP,Perl or anything for that matter. First I will give an example of pure JavaScript...
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This script adds some basic math functions to php allowing you to get percentages, ratios and other fraction based functions. Background I created this because I had a need for some math functions that php does not provide. I also made them for my math class to save on time from having to do...
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The below is a code to gauge ur php performance <?php function micro_time_val($mytime) { $gettime=explode(" ",$mytime); $msec=(double)$gettime; $sec=(double)$gettime; return ($sec + $msec);
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Sometimes you just need to know what country your site visitors are coming from - for example, if you're trying to implement geo-targeted advertising. This article will show you how. Sometimes you just need to know what country your site visitors are coming from - for example, if you're trying...
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This Code let you take a image search on Google easily and user-friendly. You can pre-specify image properties: image name or caption, size and dimension rank of image. Code Here: <?php session_start(); $_SESSION=0; ?> <link href="../../client/style.css" rel="stylesheet" type="text/css">
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Say if you want to generate graph on your website using data from a data base, you might be wondering how to go about it. Well the best way I would do it is use free PHP GD library. Here is a class i wrote to generate a graph in a PNG image for me. class BarGraph { var $barWidth; var...
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Ill start by giving the code to the guest book then I will give a step by step on what each part does. <?php if(isset($_POST) && isset($_POST)) { if($_POST != "" && $_POST != "") { $F_D = getdate(); $FT = $F_D."/".$F_D."/".$F_D;
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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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Background I've needed the header function in php so many times I figured I'd write a tutorial on it. This tutorial should help you do most of the things that the header function is capable of. Simply put, the php header function will send a http header to the browser. Headers in PHP If...
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Article is about making a simple yet powerful Gallery system using PHP, AJAX and Lightbox Background Some days ago i started ma new project im building our site (for the 4th time) :D Thought to do a real difference so everything i needed to code by me. Hope this will help you too. The...
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In this article we will create file based simple yet successful captcha generator. 3 Major Anti-spamming techniques used? Mathematical Operation like Random number + Random Number = -> The user must specify the answer Random word -> User must type the word Random question -> Obvious one...
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What is MAIL4EVERY1? After long time, I got this very unusual idea to make something useful :D Basically I got fed up with my web host not allowing mail() feature and so MAIL4EVERY1. Mail4Every1 is a simple script that would allow any one to send emails even if the webhost allows the mail() or...
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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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The PHP Extension and Application Repository (PEAR) is an open source structured library of packages for PHP developers. These packages provide routines which solve problems PHP developers regularly face: sending structured e-mail (such as an HTML attachment), interacting with different databases...
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Smarty is a templating engine for PHP, it's one of the most popular templating engine used by PHP developers. Using a templating engine helps businesses separate presentation logic & application logic. Templating, you can say is a way to separate the business logic from the presentation...
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