PHP Web Development Tutorials

PHP Web Development Tutorials and Articles
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Let us say you have some images and want to watermark those images with some other gif, jpeg, png images or with some plain text on the fly in PHP. It actually looks tough but it is very simple. Let us take a real time example of profile picture option we have here at Go4Expert.com where if you...
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I never recommend using " (double quotes) when programming with PHP. Always use ' (single quotes) unless you need the features of " (double quotes). You might think it's much easier to write code as: echo "Today is the $day of $month"; However, using single quotes forces variables to be...
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Shell Sort function in PHP <? function shellsort($elements,$length) { $k=0; $gap=(int) ($length / 2); while($gap>1) { $k++;
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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...
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Repetitive tasks are always a burden to us. Deleting spam email, sealing 50 envelopes, and going to work are all examples of tasks that are repeated. The nice thing about programming is that you can avoid such repetitive tasks with a little bit of extra thinking. Most often these repetitive tasks...
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Introduction Actually, this has been taken from my blog(www.sampctricks.blogspot.com) 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....
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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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PHPExcel project provides a set of classes, which allow us to Read, Write and Create Excel documents in PHP. File formats, supported by PHPExcel are .xls, .xlsx, CSV, .ods, Gnumeric, PDF and HTML. Requirements for PHPExcel: PHP version >= 5.2.0 PHP extensions php_zip,php_xml,php_gd2...
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password.class.php <?php /* * Simple password generator define ('PC_MINUS', 0x01); define ('PC_CAPITAL', 0x02); define ('PC_NUMBERS', 0x04); define ('PC_SPACES', 0x08);
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Cookies are basically small files which are stored in User’s Computer. Their main purpose is to hold data specific to a particular client and Website, They can only be accessed either by Web Server or the client computer. This allows the server to access user specific data while saving space on the...
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System tools & monitoring programs are often required to monitor a directory or file(s) for changes, not just content changes, it may even be attribute changes like permissions, timestamps etc. Inotify is being used for quite some time in C programming to achieve the same. Here we will be...
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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; $a=5; here the total item count is 4, but when you use count() function you get 3. So I wrote a small function which counts array elements, even recursively. ...
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Many sites send you a temporary password after u sign up with them. Here is is how you too can do that function TempPassword($tp_len) { $pstring = "aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWXxYyZz0123456789"; $plen = strlen($pstring); for ($i = 1; $i <= $tp_len; $i++) ...
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EXIF stands for Exchangeable image file format is standard by which metadata is stored in image & sound file formats, these are sometimes added by digital camera / software / or manually added by a user. These standards metadata tags help people track / store info, for example Flickr shows the...
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I like coding PHP, in Perl we can change an associative array to a list then to a string. In case if we wish to do the same in PHP, we need to write some user functions for that purpose. Here are two functions which will convert Array to String and vice-versa. //array to string ...
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This is temperature conversion script, used to convert temperature from Celsius, Fahrenheit, Rankine, and Kelvin. The Code Include the script in your php project and call one of the conversion functions with a numeric value as its parameter to get some output. You can convert from Celsius,...
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Well, I always had a problem identifying my MP3 files because of their vague filenames like, "Track 1.mp3" or "Bryan Adams 1.mp3", I was wondering whether I could rename the file depending upon the MP3 tags, so I came with up this script with reads MP3 tags and renames the file according to the...
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The code snippet below will pick up a random image from the server and sends it to the browser. Try it out. <?php if($_GET){ $folder=$_GET; }else{ $folder='/images/'; } //path to image dir
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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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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...
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