Shulou(Shulou.com)06/03 Report--

class Server{ const PORT = 8888; public function port() { //netstat -anp 2>/dev/null| grep 8888 |grep LISTEN |wc -l $shellCommand = 'netstat -anp 2>/dev/null| grep ' . self::PORT . "| grep LISTEN | wc -l"; $result = shell_exec($shellCommand); if ($result != 1) { //process does not exist, send alarm message echo 'At '.date('Y-m-d H:i:s') . ' service process is exit' . PHP_EOL; } else { echo 'At '.date('Y-m-d H:i:s') . ' service process is ok' . PHP_EOL; } }}Swoole\Timer::tick(1000, function (int $timer_id) { (new Server)->port();});

nohup /usr/bin/php ./ Server.php > ~/test.log &

More accurate writing.

netstat -anp 2>/dev/null| grep 127.0.0.1:8866 | grep LISTEN | wc -l

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