PDO & MySQL: Connect to MySQL DB using PDO & CRUD Operations

Learn to connect to a MySQL database using PDO, execute simple queries, fetch data with various fetch constants, and handle errors and exceptions for robust CRUD operations.

Explore how PDO provides a lightweight, unified driver-based API to access multiple databases, boosting security, usability, automated operations, and robust error handling.

Create a sandboxTesting database and a users table in phpMyAdmin, with id as primary key and auto increment, plus fname, lname, email, join_date, and dummy data.

Connect to a MySQL database using PDO by configuring the DSN with driver, host, and utf-8 charset, then establish the connection with credentials, options, and error handling.

Master running simple select queries with PDO::query, fetch results from the statement object, and iterate with foreach to retrieve and display data.

Learn how to execute simple insert, update, and delete queries using PDO::exec, track affected rows, and safely handle parameters through single-function calls.

Learn to run parameterized queries with PDO to protect against sql injection by preparing statements, binding values to placeholders, and executing select, update, and delete operations.

Learn to extract data from a PDO statement using foreach, retrieving rows one by one memory-friendly instead of loading all results, for MySQL CRUD operations.

Explore how to retrieve data from a PDO statement with PDO::fetch(), including fetching a single row and iterating to fetch multiple rows, and understand how results are returned as arrays.

Explore how pdo fetch modes return query results, including the default fetch mode, associative arrays, and fetching as objects or by index.

Learn to extract a single column from a PDO statement with fetchColumn and count rows using select count, enabling efficient CRUD operations in MySQL.

Explore how PDO::fetchAll() returns data in dozens of formats, including one-dimensional arrays, indexed results by the first column, and key value pairs, with group by examples.

Learn effective error handling and exceptions in PDO & MySQL, including reporting errors, when to use try/catch, securing credentials, and balancing development versus production error visibility.

Explain the proper use of the PDO::rowCount() function and why it is often misused for counting rows. Show fetching with fetch or fetchAll and using select count for row counts.

Learn how to obtain affected rows and the last insert id with PDO during insert and update operations, using prepared statements and understanding how value changes affect row counts.

Identify the problem with the limit clause in prepared statements and discuss its impact on MySQL queries when using PDO.

Learn a simple PDO function and how to chain methods to perform database operations with MySQL using PDO.

Analyze a PDO and MySQL CRUD coding exercise by evaluating a YouTube tutorial, identifying mistakes, and showing the right way to handle data and queries.

Join section three as we dive into practical methods and write your first functions, while you practice these techniques and anticipate the forthcoming lecture.

Learn to build a PDO wrapper class using the construct() method to configure username, password, hostname, database name, and options, establishing a MySQL connection with a try-catch block.

Explore CRUD methods implemented as class functions using PDO to connect to a MySQL database and perform operations.

Practice CRUD methods to manage data in a MySQL database using PDO, reinforcing core create, read, update, and delete operations.

Connect to a MySQL database using PDO, run parameterized queries, and handle errors while retrieving data and performing crud operations. Thank you, and see you in upcoming courses.