pcntl_async_signals

Enable/disable asynchronous signal handling or return the old setting

&reftitle.description; `bool` `pcntl_async_signals` ``bool``null```enable`&null;

If the `enable` parameter is &null;, `pcntl_async_signals` returns whether asynchronous signal handling is enabled. Otherwise, asynchronous signal handling is enabled or disabled.

&reftitle.parameters;

`enable`

- Whether asynchronous signal handling should be enabled.

&reftitle.returnvalues;

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.

&reftitle.changelog;

&Version; | &Description;
8.0.0 | `enable` is nullable now.

&reftitle.seealso;

- declare