Supported Versions: PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8
Returns the value of a constant
constant(string $name): mixed
        });



        
$handled false;

        
$this->assertTrue(pcntl_signal(constant($signal), function () use (&$handled) {

            
$handled true;

        }));
        });



        
$handled false;

        
$this->assertTrue(pcntl_signal(constant($signal), function () use (&$handled) {

            
$handled true;

        }));
    protected function resetSignalHandlers()

    {

        foreach(
$this->signalProvider() as $signal) {

            
pcntl_signal(constant($signal[0]), SIG_DFL);

        }

    }
        } else if ($childPid === 0) {


            
usleep(20000);

            
posix_kill($currentPidconstant($signal));

            die();

        }

    }