客户端发送$opcode === 0x9时，为什么不把当前连接的pingNotResponseCount = -1呢？

```php

if ($opcode === 0x9) {
if ($recv_len >= $current_frame_length) {
//****
} else {
//为什么不添加此行呢？
$connection->pingNotResponseCount = -1;
$connection->send($ping_data);
}
$connection->websocketType = $tmp_connection_type;
if ($recv_len > $current_frame_length) {
return static::input(\substr($buffer, $current_frame_length), $connection);
}
}

```

Locate the PHP WebSocket input handler containing the shown `opcode === 0x9` branch, then trace how `pingNotResponseCount` is updated and consumed for the current connection. Compare the full-frame and partial-frame paths and confirm the intended behavior for an incoming ping before deciding whether the counter should be reset; the issue is done when that behavior is resolved and verified.

Written by the indexing model from the issue text.