Programing Source Code Examples

Java Code to Demonstrate Recursion

The Java code implements a simple graphical application that visually represents and counts blobs within a grid by using recursion. A blob is a group of adjacent filled squares in the grid. The application uses Java Swing for creating the graphical user interface (GUI) components. It includes buttons for generating a new set of blobs, counting the number of blobs, and a grid where users can click to get information about the blob size at that specific position. This Java code uses recursion in the getBlobSize method to calculate the size of a blob.

Base85 Encoding

BASE 85 Encoding VB Class

This is a BASE85 Encoding Visual Basic class that expands the text to be encoded by 4:5 i.e. uses 5 ASCII characters to represent 4 bytes with 80% accuracy. Used in Postscript and PDF documents. Useful if binary data needs to be persisted in ASCII text.

Block a Specific IP Address in PHP

Block a Specific IP Address in PHP

In this article, we’ll explore how to block a specific IP address or a list of addresses from accessing a webpage using PHP. By leveraging PHP’s capabilities, you can fortify your web applications against unauthorized access and potential security threats. Let’s delve into the process of implementing IP-based access restrictions to bolster the security of your PHP-powered webpages.

PHP-MySQL Database Table Structure Viewer

PHP/MySQL Database Table Structure Viewer

The script uses MySQLi, a modern and more secure extension for interacting with MySQL databases in PHP. It provides a beginner-friendly way to understand the composition of your database tables. The script connects to the database, query the structure of a specific table and presents the information in an organized HTML format.

Oracle PHP Connectivity

How to use PHP with Oracle Database 11g

This source code shows you how to connect to Oracle Database 11g and execute queries using the PHP. First of all it sets the ORACLE_HOME and ORACLE_SID Environment variables using the putenv() method. Note that to run this code, you will need PHP OCI8 extension enable in php.ini file.

random numbers

Printing numbers within a range in PHP

The following PHP source code shows that how to print random numbers within a range using. It uses rand() function to return the random numbers within a predefined range. The srand() function is used to provide the seed or arbitrary int number.

Connect to sFTP Server in PHP

Connect to sFTP Server in PHP

To use SFTP within your PHP application, a series of fundamental steps need to be executed. First and foremost, you must establish a connection to the SFTP server by utilizing the ssh2 extension, which facilitates secure communication. Subsequently, authentication is crucial to ensure the identity of the connecting entity. This is achieved by providing valid credentials, including a username and password, to the SFTP server. Once authenticated, your PHP script gains access to the server and enables file-related operations such as listing directory contents, downloading files to the local environment, and uploading files to the remote server.

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