Php/docs/function.pcntl-signal-get-handler
pcntl_signal_get_handler
(PHP 7 >= 7.1.0)
pcntl_signal_get_handler — Get the current handler for specified signal
Description
pcntl_signal_get_handler
( int $signo
) : mixed
The pcntl_signal_get_handler() function will get the current handler for the specified signo.
Parameters
signo- The signal number.
Return Values
This function may return an integer value that refers to SIG_DFL or SIG_IGN. If you set a custom handler a string value containing the function name is returned.
Changelog
| Version | Description |
|---|---|
| 7.1.0 | pcntl_signal_get_handler() has been added. |
Examples
Example #1 pcntl_signal_get_handler() example
<?phpvar_dump(pcntl_signal_get_handler(SIGUSR1)); // Outputs: int(0)function pcntl_test($signo) {}pcntl_signal(SIGUSR1, 'pcntl_test');var_dump(pcntl_signal_get_handler(SIGUSR1)); // Outputs: string(10) "pcntl_test"pcntl_signal(SIGUSR1, SIG_DFL);var_dump(pcntl_signal_get_handler(SIGUSR1)); // Outputs: int(0)pcntl_signal(SIGUSR1, SIG_IGN);var_dump(pcntl_signal_get_handler(SIGUSR1)); // Outputs: int(1)?>
