posix_kill
PHP function
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(PHP 4, PHP 5, PHP 7, PHP 8)
Send a signal to a process
Description
posix_kill(int $process_id, int $signal): bool
Send the signal signal to the process with the process identifier process_id.
Parameters
process_idThe process identifier.
signalOne of the PCNTL signals constants.
Return Values
Success
Changelog
| Version | Description |
|---|---|
| 8.5.0 | Now throws a ValueError when process_id is lower or greater than what the platform supports (signed integer or long range). |
See Also
- The kill(2) manual page of the POSIX system, which contains additional information about negative process identifiers, the special pid 0, the special pid -1, and the signal number 0.