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PHP Hosting - History

History The evolution of PHP was done in a few years. To become one of the most significant languages of the Web was not a simple evolution.

PHP/FI

PHP took the continuation of an older language, called PHP/FI. PHP/FI was created by Rasmus Lerdorf, in 1995. It was initially a library of scripts Perl, of which it was used for to note the accesses to its CV on line. It gave the name of ' Personnal Tools' Home Page to this library. As it added new functionalities, Rasmus transformed the library into an implementation out of C, able to communicate with the data bases, and to create dynamic and simple applications for the Web. Rasmus then decided to publish its code, so that everyone can use it and benefit from it. That also called with the contributions and the improvements of the code.

PHP/FI, which means Personal Home Page/Forms Interpreter, included several basic functionalities that we know still today. It had these variables which resemble the Perl, an automatic system of interpretation of the variables of forms, and a syntax which is integrated easily in HTML. Syntax itself was similar to that of the Perl but more limited much. It was simple and a little incoherent.

In 1997, PHP/FI 2.0, the second version in language C, had already an estimated audience several thousands of users in the world, and approximately 50,000 domain names indicated that they had installed PHP. That accounted for approximately 1% of the domain names on the Internet. Even if the number of contributors were rather raised, PHP were always the project of only one man.

PHP/FI 2.0 was published officially in November 1997, after having passed the essence of its life in version beta. Little time after, a version alpha of PHP 3.0 was published. .

PHP 4.0
Was released in May 2000, and it is the features added to that version that make PHP highly appealing. It is to the credit of the PHP development team that this new release is intended to eliminate the most significant weaknesses in PHP 3.0 rather than simply stuffing in as many new eye-catching features as possible. The new release makes real progress in dealing with most of the drawbacks of using PHP on a real-world server, particularly its poor speed and lack of object orientation. If you are considering PHP, you should definitely plan to download this latest version. Virtually all changes to PHP in version 4.0 are internal and don't affect the way PHP is used. There should be no difference in the way PHP 4.0 and PHP 3.0 are installed, and all scripts that run in 3.0 should work without modification in 4.0.


The most significant change in PHP 4.0 is a compete rewrite of the PHP scripting engine, incorporating a language parser called the Zend Engine, from Zend Technologies Ltd. (www,zend. corn). This odd partnership between the open-source PHP development team and a commercial firm has far-reaching impact. Zend Technologies will also offer a freely available tool called the Zend Optimizer, which examines PHP code and per- forms optimizations that are claimed to double the running speed of most PHP appli- cations. And, finally, there are plans to release the Zend Compiler. The compiler will function much like a Java pseudocode compiler to compile PHP into code that is not only faster at runtime, but also unreadable (for those developers who want to distribute their product, but not in source format). The compiler is the one component that won't be free.

Database Support in PHP

One of the reasons often given for PHP's wide acceptance by Web developers is its strong support for databases. The latest version of PHP supports all of the following database engines (although a special configuration directive is required for each to compile this support into the resulting module):

Adabas D provides you with a database system that fully implements the relational model - including support for domains, primary keys, updatable join views, referential integrity, triggers and database procedures.
 

Adabas D InterBase PostgreSQL
dBase FrontBase SQLite
Empress mSQL Solid
FilePro (read-only) Direct MS-SQL Sybase
Hyperwave MySQL Velocis
IBM DB2 ODBC Unix dbm
Informix Oracle (OCI7 and OCI8)  
Ingres Ovrimos


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