Get free Java Tutorials, Java Samples, Java articles. http://www.java-samples.com/ All Rights reserved java-samples.com It was eight years ago, when Rasmus Lerdorf first started developing PHP/FI. He could not have imagined that his creation would eventually lead to the development of PHP as we know it today, which is being used by millions of people. The first version of PHP/FI, called Personal Homepage Tools/Form Interpreter, was a collection of Perl scripts in 1995. One of the basic features was a Perl-like language for handling form submissions, but it lacked many common useful language features, such as for loops. http://www.java-samples.com/showtutorial.php?tutorialid=889 Fri, 21 Nov 2008 00:00:00 MST Variables in PHP are quite different from compiled languages such as C and Java. This is because their weakly typed nature, which in short means you don't need to declare variables before using them, you don't need to declare their type and, as a result, a variable can change the type of its value as much as you want. http://www.java-samples.com/showtutorial.php?tutorialid=890 Fri, 21 Nov 2008 00:00:00 MST isset() determines whether a certain variable has already been declared by PHP. It returns a boolean value true if the variable has already been set, and false otherwise, or if the variable is set to the value NULL. http://www.java-samples.com/showtutorial.php?tutorialid=891 Fri, 21 Nov 2008 00:00:00 MST unset() undeclares a previously set variable, and frees any memory that was used by it if no other variable references its value. A call to isset() on a variable that has been unset() returns false. empty() may be used to check if a variable has not been declared or its value is false. This language construct is usually used to check if a form variable has not been sent or does not contain data. When checking a variable's truth value, its value is first converted to a Boolean according to the rules in the following section, and then it is checked for true/false. http://www.java-samples.com/showtutorial.php?tutorialid=892 Fri, 21 Nov 2008 00:00:00 MST You would have heard this word quite a number of times 'SAP'. This word (or an abbreviation) which brightens many an eye. For a IT professional it symbolizes a dream career, for a customer a sigh of relief, for SAP partner a sigh of joy. 'SAP' rather a small word but it has become a part or cause of life for many in a short span of time, what is it? What it does? Is what we are going to see in this article http://www.java-samples.com/showtutorial.php?tutorialid=884 Sat, 08 Nov 2008 00:00:00 MST SAP is a business process module which helps a company to remodel its business process, fine but how it replaces the old and trusted process and gives immense returns to the company. Why should a company change the process it has been practicing all these years? http://www.java-samples.com/showtutorial.php?tutorialid=885 Sat, 08 Nov 2008 00:00:00 MST The If condition statement in VB.net is a handy tool let's take a look at the immense usage it throws http://www.java-samples.com/showtutorial.php?tutorialid=886 Sat, 08 Nov 2008 00:00:00 MST There are number of ways in the usage of if in VB.net lets look at the most fascinating two methods of them http://www.java-samples.com/showtutorial.php?tutorialid=887 Sat, 08 Nov 2008 00:00:00 MST Want a electrifying career in SAP, here are some interview questions that will thrown at you, take a sneak peak and freak out http://www.java-samples.com/showtutorial.php?tutorialid=888 Sat, 08 Nov 2008 00:00:00 MST Is your website which was working without a flaw suddenly shows a 404 File not found for all the pages. If this is the case then double check your error logs in your server. If you are using a hosting provider then you can access the logs from your control panel. When you read the raw error logs you would see something like this. .htaccess pcfg_openfile: unable to check htaccess file, ensure it is readable http://www.java-samples.com/showtutorial.php?tutorialid=881 Sun, 26 Oct 2008 00:00:00 MDT There are two kinds of prompts command-line prompts and irb prompts. If you type a command meant for the command-line interpreter to irb (or vice versa), you'll get confusing results. If what you see on your screen is nothing like what the book tells you to expect, check that you're typing at the right prompt. http://www.java-samples.com/showtutorial.php?tutorialid=874 Fri, 17 Oct 2008 00:00:00 MDT A Ruby name may contain letters, numbers, and the underscore character (not a hyphen). Names can't begin with a number, nor may they include spaces. Case matters: my_ship is not the same name as my_Ship. http://www.java-samples.com/showtutorial.php?tutorialid=875 Fri, 17 Oct 2008 00:00:00 MDT Command-line arguments are available as strings in the array named ARGV. For example, consider this command line: http://www.java-samples.com/showtutorial.php?tutorialid=876 Fri, 17 Oct 2008 00:00:00 MDT Ruby methods let you create new verbs (messages) in the Ruby lan- methods guage. It's a bit confusing that two closely related ideas messages and methods have such similar names. http://www.java-samples.com/showtutorial.php?tutorialid=877 Fri, 17 Oct 2008 00:00:00 MDT Here is Ruby's if statement in all its glory, wrapped in a method: http://www.java-samples.com/showtutorial.php?tutorialid=878 Fri, 17 Oct 2008 00:00:00 MDT