# 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。

`DBASE_VERSION` (string)
  The extension version. (Available as of dbase 7.0.0)
`DBASE_RDONLY` (int)
  Open database for reading only. Used with dbase_open(). (Available as of dbase 7.0.0)
`DBASE_RDWR` (int)
  Open database for reading and writing. Used with dbase_open(). (Available as of dbase 7.0.0)
`DBASE_TYPE_DBASE` (int)
  Create dBASE style database. Used with dbase_create(). (Available as of dbase 7.0.0)
`DBASE_TYPE_FOXPRO` (int)
  Create FoxPro style database. Used with dbase_create(). (Available as of dbase 7.0.0)

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