Javascript: Data Encryption and Decryption in PHP

This snippet demonstrates how to encrypt and decrypt data in PHP using OpenSSL for secure data handling in applications that require confidentiality, such as handling sensitive user information.

The code shows how to securely generate encryption keys, perform encryption and decryption of strings, and ensure that the encrypted data can only be accessed by authorized users with the correct key.

Error handling is thorough, with checks to ensure that encryption and decryption processes succeed without data corruption or security breaches.

The snippet is structured to be reusable and can be easily integrated into existing security frameworks or applications needing robust data protection.

This example is crucial for developers implementing advanced security measures in their applications to protect data from unauthorized access or leaks.