PHP Web Development Tutorials

PHP Web Development Tutorials and Articles
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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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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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Title says it all but to reemphasize that below PHP code block validate an email address. Its always good to have a client side validation for faster user responses but backend check is also needed for user not having client side scripting on. <?php function emailsyntax_is_valid($email) { ...
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The below is a code to gauge ur php performance <?php function micro_time_val($mytime) { $gettime=explode(" ",$mytime); $msec=(double)$gettime; $sec=(double)$gettime; return ($sec + $msec);
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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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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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Amazon Simple Storage Service (S3) is a low-cost & high-availability storage service provided by Amazon Web Services. It's very efficient and cheap, it allows you to store as much as you want and there is no limit, you pay for what you use and you pay as you go, there is no commitment. You can...
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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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Recently i had to implement a file split-er in PHP and was shocked find how LESS pre written scripts are available for the task. So thought of writing a quick one myself. If you just want the code, I have a fully featured php script hosted at github Just download it there and well CONTRIBUTE :)...
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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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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...
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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) {$size =...
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A Comma-Separated Values(CSV) file stores information in a list with a comma between each item. A CSV file may consists of any number of records. CSV file format is widely supported by scientific applications, and various consumer and business applications. There are a few variations where...
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These functions allow you to get the mean, the median, tell if a number is even or odd, strip an array of all strings and characters, and provide probability. The mean function works well if your trying to implement a rate system. just filter the input values of the array and it will work...
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Memcached is a high-performance open-source caching solution, generally used to improve web application performance by avoiding round-trips to RDBMS, to know more about memcached read Faster Webapps With Memcached. In this article we'll discuss about installing and using memcached in PHP. A PHP...
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This script adds some basic math functions to php allowing you to get percentages, ratios and other fraction based functions. Background I created this because I had a need for some math functions that php does not provide. I also made them for my math class to save on time from having to do...
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EXIF stands for Exchangeable image file format is standard by which metadata is stored in image & sound file formats, these are sometimes added by digital camera / software / or manually added by a user. These standards metadata tags help people track / store info, for example Flickr shows the...
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Many times we require to format a number to output with thousand place comma separator, here is a function will help you do so. function numcomma ($value) { if(strpos($value,".")) { $decimalval = substr($value,strpos($value,".")+1); $value =...
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Most of us have know PHP as a language used for web development, but it is also being used for writing backend processing scripts, backup scripts, deferred processing scripts etc. for a long time but still not as much as other scripting languages as Perl, Python, or Ruby. But if you are a PHP...
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Mysqli extension provides us to access the functionality offered by MySQL 4.1 and above.The i in the function name stands for improved (MySQL Improved). The mysqli extension is built using the PHP extension framework.The MySQLi library is much more optimized and quicker than the previous MYSQL...
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