How to catch an exception from the fwrite command?

Question

WordPress

There is a Yii2 console application.

ActionIndex

public function actionIndex()
    {
        $ip = 'tcp://192.168.5.162';
        $port = 10001;
        $storage = 'Автоприем';
        $this->fp = $this->init_rfid($ip,$port, $storage);
        while($this->fp <> 0){
            $this->read_rfid($storage);
            usleep(1500000);
        }
    }

In the init_rfid method, a request is sent to the device, initializing and blocking the channel to communicate with it.

init_rfid method

$fp = @fsockopen($ip,$port,$errno, $errstr, 10);
if (!$fp) {
      print_r("ERROR: $errno - $errstr\n");
      $fp = 0;
} else{
...
}

Every 1.5 seconds I read the state from it.
But after some time (a day, a week), the connection is reset on the device side and the fwrite command in the read_rfid method flies away with an error

Error: fwrite(): send of 180 bytes failed with errno=10054

I don't want to initialize every 1.5 seconds, because it needs to send 2 requests to the device.
How do I control the connection or handle the fwrite exception?

Answer 1

run a bulk search in ide and find the button you need.

Answer 2

You can use the Loco Translate plugin , for example.

Answer 3

this function does not throw exceptions.

How to catch

Throwable or crutch in early versions