pcntl_async_signals

(PHP 7 >= 7.1.0, PHP 8)

pcntl_async_signals — Enable/disable asynchronous signal handling or return the old setting

说明

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.

参数

enable: Whether asynchronous signal handling should be enabled.

返回值

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.

更新日志

版本	说明
8.0.0	`enable` is nullable now.

参见

declare

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备份地址：http://www.lvesu.com/blog/php/function.pcntl-async-signals.php