## Runtime Configuration

The behaviour of these functions is affected by settings in php.ini.

Swoole Configure Options
Name | Default | Changeable | Changelog
--- | --- | --- | ---
swoole.enable_library | On | `INI_ALL` |
swoole.enable_fiber_mock | Off | `INI_ALL` |
swoole.enable_preemptive_scheduler | Off | `INI_ALL` |
swoole.display_errors | On | `INI_ALL` |
swoole.use_shortname | On | `INI_SYSTEM` |
swoole.unixsock_buffer_size | 8388608 | `INI_ALL` |

Here's a short explanation of the configuration directives.

`swoole.enable_library` string

  Enable/disable the extension's built-in library.

`swoole.enable_fiber_mock` string

  Enable/disable use the xdebug extension to debug Swoole programs.

`swoole.enable_preemptive_scheduler` string

  Prevent some coroutines from consuming CPU time for too long in a tight loop (10ms of CPU time), preventing other coroutines from getting scheduled.

`swoole.display_errors` string

  Enable/disable displaying Swoole error messages.

`swoole.use_shortname` string

  Enable/disable short aliases.

`swoole.unixsock_buffer_size` int

  Set the size of the Socket buffer for inter-process communication.

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