Category Archives: PHP

How to Check if a Date is More or Less Than a Month Ago with PHP

Posted on November 4, 2011 by Stoimen

Let’s say we have the following problem: we have to check whether a date is more than a month ago or less than a month ago. Many developers go in the wrong direction by calculating the current month and then … Continue reading →

Posted in micro tutorial, PHP | Tagged date and time, dates, datetime, how-to, micro tutorial, PHP, strtotime, tutorial, unix timestamp | 1 Comment

Object Cloning and Passing by Reference in PHP

Posted on October 27, 2011 by Stoimen

In PHP everything’s a reference! I’ve heard it so many times in my practice. No, these words are too strong! Let’s see some examples. Passing Parameters by Reference Clearly when we pass parameters to a function it’s not by reference. … Continue reading →

Posted in micro tutorial, PHP | Tagged C, Clone, Cloning, Comparison of programming languages, Computer programming, Computing, Curly bracket programming languages, Java programming language, PHP, PHP programming language, Procedural programming languages, Scripting languages, Software engineering | 3 Comments

Some Notes on the Object-oriented Model of PHP

Posted on October 20, 2011 by Stoimen

PHP 5 introduces interfaces and abstract classes. To become a little clearer, let us see their definitions. Interfaces Object interfaces allow you to create code which specifies which methods a class must implement, without having to define how these methods … Continue reading →

Posted in PHP | Tagged abstract classes, Abstract type, C, Class, Computer programming, Computing, Education, experiment, how-to, iheritance, Interfaces, Java programming language, Method, micro tutorial, Object-oriented programming, PHP, php 5, php class definition, php experiment, php tutorial, php5, Polymorphism in object-oriented programming, Software design patterns, Software engineering, tutorial, Virtual function | 5 Comments

Thing to Know About PHP Arrays

Posted on October 19, 2011 by Stoimen

Consider the following case. We have an array with identical keys. $arr = array(1 => 10, 1 => 11); What happens when the interpreter reaches this line of code? This is not a syntax error and it is completely valid. … Continue reading →

Posted in micro tutorial, PHP | Tagged Arrays, C programming language, Comparison of programming languages, Computer programming, Computing, Data structures, Data types, Foreach, how-to, interpreter, micro tutorial, PHP, PHP arrays, PHP micro tutorial, php tutorial, programming, tutorial, web development, webdev | Leave a comment

PHP: Does SimpleXMLElement have toString() method? No, better use asXML()!

Posted on October 10, 2011 by Stoimen

SimpleXML is a PHP extension that “provides a very simple and easily usable toolset to convert XML to an object” [1]. Thus you can pass a link to an XML file and SimpleXML will return an object. $xml = simplexml_load_file(’path_to_the_file’); … Continue reading →

Posted in PHP | Tagged communication, Computer file formats, Computing, Markup languages, Open formats, OSI protocols, PHP, Technical communication, XML | 1 Comment