Overview

The session.save_path directive in PHP defines the directory where session data files are stored on the server. By default, Plesk hosting environments configure a secure, system-level directory for PHP sessions.

However, certain web applications, custom scripts, or specific CMS configurations may require modifying the session.save_path location to clear permission errors, isolate session storage, or resolve PHP session timeout issues.

Because modifying the PHP session path requires server-level directory permission updates and environment configuration checks, changing this setting requires live support assistance.

Why Is Live Support Required?

Modifying the session.save_path setting cannot be fully self-served via standard PHP settings panels due to system environment rules:

1. Directory Permissions: The target directory must have exact web server user ownership (such as sysuser:psacln) and correct read/write filesystem permissions (700 or 755). If configured incorrectly via custom php.ini directives, PHP will fail to write session files, resulting in 500 Internal Server Error responses or website login loops.

2. Open_basedir Restrictions: Plesk enforces strict security via the open_basedir directive. Any custom path specified in session.save_path must also be explicitly added to your domain's allowed open_basedir path list by a server administrator.

How to Request a Custom PHP Session Path

To request a change to your PHP session.save_path configuration:

• Action: Connect directly with a Live Agent via chat, phone call or email.