Predefined Constants

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- PHP Manual
- Radius
- Predefined Constants

# Predefined Constants

## Table of Contents

- RADIUS Options
- RADIUS Packet Types
- RADIUS Attribute Types
- RADIUS Vendor Specific Attribute Types

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

`RADIUS_MPPE_KEY_LEN` (int)
  The maximum length of MPPE keys.