# Predefined Constants

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.

`PHPDBG_VERSION` (string)
`PHPDBG_FILE` (int)
  Removed as of PHP 7.3.0.
`PHPDBG_METHOD` (int)
  Removed as of PHP 7.3.0.
`PHPDBG_LINENO` (int)
  Removed as of PHP 7.3.0.
`PHPDBG_FUNC` (int)
  Removed as of PHP 7.3.0.
`PHPDBG_COLOR_PROMPT` (int)
`PHPDBG_COLOR_NOTICE` (int)
`PHPDBG_COLOR_ERROR` (int)