PHP (PHP Hypertext Preprocessor, earlier Personal HomePage) "programs" are technically thought of as scripts. They run on web-servers with the purpose of generating web-pages on request.
Where a Guestbook would normally be a number of database entities on the server, when asked, a PHP script would take a decided number of these entities and return them to the user as information that could be shown in the Web browser.
I.e. Facebook uses PHP to fetch all information relevant to the user, from the database, then sending it to the users web-browser where it is made visible to you as meaningful content.
PHP, Html
Ratinonal program in php
PHP is in interpreted language, and ships with one, however PHP itself is a program language and not an interpreter.
This particular file is a file specific to the PHP program or script you are using. It is not a "php system file".
An HTML Converter is a program that will take your HTML files and modify them to be able to be used with PHP, Javascript or ASP.
PHP files are plain text, so you can read them with your text editor or IDE of choice.
Php
well, as such there is no Widget in php. You need to write your own widget program if you are interested to develop. You must be aware of wordpress built on php plateform and that uses widget extensively :)
It is used to tell the sever to use the PHP parser. To begin php you must use <?php, and to end it, it is ?>.
A PHP file is a text file containing code to be run on a webserver by a program called php. It's the most used dynamic page script engine as it is free and open source.Use the fopen() function to open files in PHP. The first parameter of this function is the file to be opened and the second parameter specifies in which mode the file should be opened
Once you install wamp server. Any file with php extenstion like xyz.php you put in www folder will be executed as PHP file.
in php used for one typ website