pcntl_async_signals
(PHP 7 >= 7.1.0, PHP 8)
pcntl_async_signals — Enable/disable asynchronous signal handling or return the old setting
Description
pcntl_async_signals(?bool $enable = null): bool
If the enable
parameter is null
, pcntl_async_signals() returns whether asynchronous signal handling is enabled. Otherwise, asynchronous signal handling is enabled or disabled.
Parameters
-
enable
-
Whether asynchronous signal handling should be enabled.
Return Values
When used as getter (enable
parameter is null
) it returns whether asynchronous signal handling is enabled. When used as setter (enable
parameter is not null
), it returns whether asynchronous signal handling was enabled before the function call.
Changelog
Version | Description |
---|---|
8.0.0 | enable is nullable now. |
See Also
© 1997–2021 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.pcntl-async-signals.php