posix_kill

Function • Params and return types changed in PHP 8.0

Send a signal to a process.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6

posix_kill Function synopsis

posix_kill(int $process_id, int $signal): bool

Parameters

$process_id

Typeint

The process identifier.

$signal

Typeint

One of the PCNTL signals constants.

Return value

Typebool

Returns true on success, false on failure

Changes to the posix_kill Function

PHP 8.0

  • Return type added: bool
  • Parameter name of parameter #1 changed: $pid to $process_id
  • Parameter type added for parameter #1 ($process_id): int
  • Parameter name of parameter #2 changed: $sig to $signal
  • Parameter type added for parameter #2 ($signal): int
- posix_kill($pid, $sig)
+ posix_kill(int $process_id, int $signal): bool

posix_kill 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 Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported Yes
PHP 5.3Unsupported Yes