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Tables and Their Structure (<table>, <tr>, <td>)

Table of Contents Introduction to HTML Tables The Basic Structure of an HTML Table Table Rows (<tr>) and Table Cells (<td>) Table Headings (<th>) and Caption (<caption>) Colspan and...

Images and the <img> Tag

Links and Anchor Tags

Table of Contents Introduction to Links and Anchor Tags Creating a Basic Link with the <a> Tag Using the href Attribute Opening Links in a New Tab with...

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Monitoring and Performance Tuning in MongoDB

Table of Contents Introduction to MongoDB Monitoring and Performance Tuning Key Performance Indicators (KPIs) for MongoDB MongoDB Monitoring Tools and Techniques Identifying Performance Bottlenecks Indexing and Query Optimization Resource Management...

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MongoDB Change Streams and Real-Time Event Listening

Table of Contents Introduction to Change Streams How Change Streams Work in MongoDB Benefits of Using Change Streams Use Cases for MongoDB Change Streams Implementing Change Streams in Node.js Handling...

MongoDB Transactions in Replica Sets

Table of Contents Introduction to MongoDB Transactions Why Use Transactions in MongoDB? MongoDB Replica Sets and Transactions How Transactions Work in MongoDB Replica Sets ACID Properties of MongoDB Transactions Example...

Sharding and Horizontal Scaling in MongoDB

Table of Contents Introduction to Sharding and Horizontal Scaling Why Horizontal Scaling is Important for MongoDB Sharding Architecture in MongoDB Shard Key Config Servers Mongos Setting Up Sharding in MongoDB How MongoDB...

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Cookies in PHP

Table of Contents Introduction to Cookies Setting Cookies in PHP Retrieving Cookies in PHP Modifying and Unsetting Cookies Cookie Expiration and Lifetime Secure Cookies and HttpOnly Cookies Cookie Scope: Domain and...

Sessions in PHP

Table of Contents Introduction to Sessions Starting a Session Storing Data in Sessions Retrieving Data from Sessions Modifying and Unsetting Session Variables Destroying a Session Session Security Best Practices Example: Creating a...

File Uploads and Image Handling

Table of Contents Introduction to File Uploads Setting Up the HTML Form for File Upload PHP File Upload Handling Checking for File Upload Errors Validating File Types and Sizes Moving...

Form Validation and Sanitization

Table of Contents What Is Form Validation? What Is Data Sanitization? Why Are Validation and Sanitization Important? Types of Form Validation Client-side Validation vs. Server-side Validation Validation Techniques in PHP Common...

Introduction to Prepared Statements in MySQLi

Table of Contents What Are Prepared Statements? Why Use Prepared Statements? Security: Preventing SQL Injection Performance Benefits Understanding the Structure of Prepared Statements Steps Involved in Using Prepared Statements How to...

CRUD Operations (Create, Read, Update, Delete) in PHP with MySQLi

Table of Contents What Are CRUD Operations? Setting Up the Database for CRUD Operations Creating Data in MySQL (Create) Inserting Data Using MySQLi Prepared Statements for Inserting Data Reading Data...

Connecting PHP with MySQL using MySQLi

Table of Contents What is MySQLi? Why Use MySQLi for MySQL Connections? Setting Up MySQL and PHP for MySQLi Connecting to MySQL using MySQLi Using MySQLi Object-Oriented Method Using MySQLi...

Introduction to MySQL and Database Integration

Table of Contents What is MySQL? Why Use MySQL with PHP? Setting Up MySQL and PHP Connecting PHP to MySQL Using mysqli Using PDO (PHP Data Objects) Basic MySQL Queries in...

Introduction to Debugging in PHP

Table of Contents What is Debugging? Why Debugging is Important in PHP Common Debugging Techniques Using var_dump() Using print_r() Using echo and exit Using debug_backtrace() Debugging Tools and Extensions Xdebug Debugging with IDEs (PHPStorm,...

PHP Include & Require Statements

Table of Contents Introduction to Include and Require Syntax of include Syntax of require Key Differences Between include and require Using include_once and require_once Best Practices for Using Include and...

Introduction to Error Handling in PHP

Table of Contents Introduction to Error Handling Types of Errors in PHP Syntax Errors Runtime Errors Logic Errors Error Reporting in PHP error_reporting() ini_set() Displaying Errors Handling Errors with try-catch Block Syntax of try-catch Throwing Exceptions Custom...

File Handling in PHP

Table of Contents Introduction to File Handling in PHP File System Functions Opening Files Reading Files Writing Files Closing Files File Permissions Uploading Files File Handling Functions: fopen(), fread(), fwrite(), fclose() Working with Directories Error...