PHP, or Hypertext Preprocessor, is an open source programming language that is primarily used with server applications. When it was first developed, PHP was supposed to be an advanced scripting language that could be used to build web pages that were dynamic. When PHP was first built, it was based off scripts that came from Perl. In addition to this, CGI binaries that were derived from C were used as well. The creation of PHP is credited to Rasmus Lerdorf, who used the language in 1994 to showcase his resume. However, a number of additions and modifications have been made to the language by other programmers since this time.
In 1997, the parser was rewritten, and it was at this time that the term "hypertext preprocessor" was introduced. It was during the late 1990s that PHP begin to be recognized by the programming community. In most cases, PHP will operate off a web server. The PHP code will be taken in as input, and the creation of a web page will be the output. When PHP is used in this manner, it can be likened to ColdFusion or ASP.NET. To make PHP more effective against this programming languages, the Zend Framework is currently being developed. Some have said that it will have a structure that is similar to Symfony.
PHP plays an important role in the LAMP architecture. This system is being used by the internet industry to create web applications that are scalable, secure, and reliable. In addition to web applications, PHP can also be used with various relational database management systems. It can run on virtually any server, and it has become popular with a wide variety of operating systems. PHP is one of the most flexible languages in use today. It can be installed throughout much of the internet. As of this writing, over 17 million domains are using servers that utilize PHP. The advent of this language has led to a number of powerful applications, and some of these are Wordpress and MediaWiki.
One powerful feature of PHP is its command line interface. In addition to this, it offers support for a number of different GUI libraries. This allows a wide variety of software to be built. With regards to syntax, PHP will function as a type of filter. It will take a file that has text, and will transform it into a different form so that it can be displayed. Any new lines that are present with PHP will be acted upon as whitespace. If you want to delete a statement, you can use a semicolon. It should be noted that there are a few exceptions to this. When it comes to numbers, PHP will store any whole numbers in what is called a platform dependent range, which will typically be 32 bit.
Like C++ and Java, PHP uses a boolean system. Any values which are not zero can be translated into either true or false. Any data type that does not have a specific value is described as being "null."