You can use the GD extension for PHP to edit image files.
if i got your question right, you mean "what are php tags?" your should write PHP codes between <?php ... ?> where ... should be replaced by codes that you need. But if you mean "what are php codes?": there are some default codes that you may find them on php.net, and the other part is codes (Functions or classes) that other programmers develops..
PHP can create images of different sizes. It depends on a particular image.
Ratinonal program in php
I have had a lot of experience with image modification modules with PHP. In order to perform image manipulation in PHP you need an image processing module installed such as GD2 or imagemagik. GD2 comes with PHP and can be installed fairly easily if it is not already installed. You can follow the PHP GD manually for the usage of these functions.
Your question is very vague, The PHP Codes as you call them could be referring to the server-side code written in PHP that a website uses. for more information about PHP go to php.net
PHP can create images of different sizes. It depends on a particular image.
Image Slideshow is very difficult using php. Instead store the image files in an image folder and apply slideshow to them using javascript. Here's a reference to automatic slideshow using javascript: How_do_you_create_slide_show_using_javascript_code
Image creating and manipulating in PHP can be done with multiple libraries, some officially supported by PHP and some made by third parties. A common library, especially for developers new to image libraries, is the GD package. You must include the library you wish to use upon installation of PHP (if it is officially supported), or manually include the library into your scripts.
PHP 6 hasn't been released yet.
On earlier versions of PHP, when PHP sleep was called on Windows machines, it returned an error. The command can also be interrupted by the Operating System.
using servlets, php, and database we can connect import codes into java
To save an image URL in a database using PHP, you can create a table with a column to store the URL. When inserting data, you can use SQL queries with PHP to insert the URL into the database. Make sure to properly sanitize and validate the input to prevent SQL injection or other security vulnerabilities.