# 预定义常量

下列常量由此扩展定义，且仅在此扩展编译入 PHP 或在运行时动态载入时可用。

`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)

`↑` and `↓` to navigate • `Enter` to select • `Esc` to close • `/` to open