OSX-Ask the gods: How do you connect Kafka with PHP clients, and how do you monitor broker changes to refresh client data?

Recently in the study with PHP Lian Kafka.
Using the Nmred/kafka-php Project code on the Githup
Currently
1. You can already connect to the Kafka on the server,
2. Test: Command line execution PHP Produce.php,consumer end can also get data
Problem:
How does the 1.consumer end always execute while the dead loop is written?
2.kafka-php is how to do the client interval time to pull new information and refresh the client data?
3. What is the meaning of this sentence in readme.md:

 Watches broker state, if broker changes, the client will refresh     broker and topic metadata stored in the client?

Please use the tool to enlighten the idea, not very grateful!

Add: Now my PHP client consumer can receive data, but always contain garbled characters, such as I input in the producer segment: Nihao, then PHP consumer.php, will output:
M 5 3 SNAPPY '; Nihao

Now the question is:
1. Why is the producer end input: Nihao, but the information output on the consumer side is not Nihao?
2. Why is there a string of garbled characters?
3. How to solve?
4. The core code read by the socket is attached below:

Gets the information for the consumer end, where $this->stream is a socket successfully connected socket object:
$msg = $this->stream->read ($messageSize, true);

The Read method core code is as follows:
$readable = @stream_select ($read, $null, $null, $this->recvtimeoutsec, $this->recvtimeoutusec);

    if ($readable > 0) {$remainingBytes = $len;        $data = $chunk = ";            while ($remainingBytes > 0) {$chunk = Fread ($this->stream, $remainingBytes);                if ($chunk = = = False) {$this->close ();            throw new \kafka\exception\socketeof (' Could not read ', $len. ' Bytes from stream (no data) ');                } if (strlen ($chunk) = = = 0) {//Zero bytes because of EOF?                    if (feof ($this->stream)) {$this->close ();                throw new \kafka\exception\socketeof (' unexpected EOF while reading '. $len. ' bytes from stream (no data) '); }//Otherwise wait for bytes $readable = @stream_select ($read, $null, $null, $this->rec                Vtimeoutsec, $this->recvtimeoutusec);  if ($readable!== 1) {throw new \kafka\exception\sockettimeout (' Timed out reading socket while reading ' . $len. 'Bytes with '. $remainingBytes.                ' bytes to go '); } continue;            Attempt another read} $data. = $chunk;        $remainingBytes-= strlen ($chunk); }

Use this while loop to splice information. The point is that the $chunk that fread out contains garbled characters.

Call Master!

Reply content:

Recently in the study with PHP Lian Kafka.
Using the Nmred/kafka-php Project code on the Githup
Currently
1. You can already connect to the Kafka on the server,
2. Test: Command line execution PHP Produce.php,consumer end can also get data
Problem:
How does the 1.consumer end always execute while the dead loop is written?
2.kafka-php is how to do the client interval time to pull new information and refresh the client data?
3. What is the meaning of this sentence in readme.md:

 Watches broker state, if broker changes, the client will refresh     broker and topic metadata stored in the client?

Please use the tool to enlighten the idea, not very grateful!

Add: Now my PHP client consumer can receive data, but always contain garbled characters, such as I input in the producer segment: Nihao, then PHP consumer.php, will output:
M 5 3 SNAPPY '; Nihao

Now the question is:
1. Why is the producer end input: Nihao, but the information output on the consumer side is not Nihao?
2. Why is there a string of garbled characters?
3. How to solve?
4. The core code read by the socket is attached below:

Gets the information for the consumer end, where $this->stream is a socket successfully connected socket object:
$msg = $this->stream->read ($messageSize, true);

The Read method core code is as follows:
$readable = @stream_select ($read, $null, $null, $this->recvtimeoutsec, $this->recvtimeoutusec);

    if ($readable > 0) {$remainingBytes = $len;        $data = $chunk = ";            while ($remainingBytes > 0) {$chunk = Fread ($this->stream, $remainingBytes);                if ($chunk = = = False) {$this->close ();            throw new \kafka\exception\socketeof (' Could not read ', $len. ' Bytes from stream (no data) ');                } if (strlen ($chunk) = = = 0) {//Zero bytes because of EOF?                    if (feof ($this->stream)) {$this->close ();                throw new \kafka\exception\socketeof (' unexpected EOF while reading '. $len. ' bytes from stream (no data) '); }//Otherwise wait for bytes $readable = @stream_select ($read, $null, $null, $this->rec                Vtimeoutsec, $this->recvtimeoutusec);  if ($readable!== 1) {throw new \kafka\exception\sockettimeout (' Timed out reading socket while reading ' . $len. 'Bytes with '. $remainingBytes.                ' bytes to go '); } continue;            Attempt another read} $data. = $chunk;        $remainingBytes-= strlen ($chunk); }

Use this while loop to splice information. The point is that the $chunk that fread out contains garbled characters.

Call Master!

Consumer should only be able to determine if the broker has changed through a loop, and then update it.

