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。

READLINE_LIB (string): The library which is used for readline support; currently either readline or libedit. Removed as of PHP 8.4.0.

版本	说明
8.4.0	The `READLINE_LIB` has been removed. The library which is used for readline support; either `readline` or `libedit`.