Develop Secure Applications with PHP PDO - Ultimate Guide

Develop Secure Applications with PHP PDO – Ultimate Guide

Develop Secure Applications with PHP PDO, Advantages of choosing PHP PDO is their support for prepared statements which offer important security features.

A prepared statement is a template for an SQL query that incorporates value from user input. The prepared statement contains a placeholder for each value that’s stored in a variable. This not only makes it easier to embed the variables in your PHP code, it also prevents SQL injection attacks, because PHP PDO automatically escapes quotes and other characters before executing the query.

PDO also supports the use of named placeholders and anonymous placeholders.

Placeholders can be used only for column values. They can’t be used for other parts of an SQL query, such as column names or operators.

Using a prepared statement for a single query involves two round trips to the database server. The first time to validate and optimize the SQL, the second to send the values to the placeholders.

PDO Basics

Fetching Records with PDO

Inserting Records with PDO

Deleting Records with PDO

PDO Prepared Statements

Creating CRUD Application with PHP PDO

Now you know all the basics to create an application with PHP PDO. Here I’ve created a simple CRUD application with PHP PDO to show how you can use PDO in your applications.

Follow this step by step guide to develop a CRUD application with PHP PDO and make yourself comfortable with PHP PDO.

Complete Code of all the files

If you want to access all the practice files, you can get these files from here.


PHP PDO is more secure and prevents from SQL injections. You should start implementing PHP PDO in your applications if you are not already using it.

If you have any doubts let me know through the comment form below.

Connect to pdo securely pdo secured connection
Vivek Vengala

Vivek Vengala is a Online Entrepreneur, Web Developer from Hyderabad India.

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