Security-related question about a possible exposed credential

[Emma-NYL]

Hello,

My name is Emma, I am conducting an academic study on possible credential exposure in public GitHub repositories.

While analyzing this repository, I found a string that may represent a credential. I'm including the code snippet below containing possible leakage. To avoid exposing sensitive information publicly, I marked the sensitive information.

Could you please help clarify whether the detected string is:

1. a real credential, or
2. a placeholder / example value?

Thank you for your time.

---

Code snippet (sensitive values masked):

// DB
const ENV_DB_DRIVER = "DB_DRIVER"
const ENV_DSN = "DSN"

// Session
const ENV_SESSION_SECRET = "SESSION_SECRET"
const ENV_SESSION_EXPIRE_DAYS = "SESSION_EXPIRE_DAYS"

// User Password salt
const ENV_SALT = "PASSWORD_SALT"
const ENV_AUTH_PREFIX = "AUTH_PREFIX"
const ENV_STATIC_PREFIX = "STATIC_PREFIX"

Thank you in advance for your time - I really appreciate it!

Sincerely,
Emma