pcntl_async_signals

Function • Params and return types changed in PHP 8.0

Enable/disable asynchronous signal handling or return the old setting.

PHP 5
PHP 7.0
PHP 7.1
Added
PHP 7.2-7.4
PHP 8.0
Improved
PHP 8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6

pcntl_async_signals Function synopsis

pcntl_async_signals(?bool $enable = null): bool

Parameters

$enable

OptionalType?boolDefault valuenull

Whether asynchronous signal handling should be enabled.

Return value

Typebool

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.

Changes to the pcntl_async_signals Function

PHP 8.0

  • Return type added: bool
  • Parameter name of parameter #1 changed: $on to $enable
  • Parameter type added for parameter #1 ($enable): ?bool
  • Parameter default value added for position #1 ($enable): null
- pcntl_async_signals($on)
+ pcntl_async_signals(?bool $enable = null): bool

PHP 7.1

  • Function added

pcntl_async_signals Function Availability

PHP VersionAvailability
PHP 8.6Upcoming Release Yes
PHP 8.5Supported (Latest) Yes
PHP 8.4Supported Yes
PHP 8.3Security-Fixes Only Yes
PHP 8.2Security-Fixes Only Yes
PHP 8.1Unsupported Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported No
PHP 5.6Unsupported No
PHP 5.5Unsupported No
PHP 5.4Unsupported No
PHP 5.3Unsupported No