Close and unset $this

[NotionCommotion]

Is it possible to close a connection and delete an object when within that object?  For instance:

<?php
//....
$socket->on('connection', function (\React\Socket\ConnectionInterface $stream){
    $client = new DuplexStreamInterface($stream);
    //....    
});
//....

class LengthPrefixStream
{
    public function __construct(DuplexStreamInterface $socket){
        $this->socket = $socket;
        $this->socket->on('data', function($data){
            $this->buffer .= $data;
            $this->parseBuffer();
        });
    }

    public function parseBuffer(){
        //...
        if($badConnectionSoCloseSelf) {
            $this->socket->close();
            unset($this);
        }
        //...
    }
}

[requinix]

You can call $this->close() or whatever to "close a connection".

 

You cannot unset $this. I can't think of any reason why you should need to. If the calling code wants to destroy the object then it needs to do that (and by "destroy" I mean remove any reference it has and forget about the whole ordeal (however the object may be referenced somewhere else)).

[NotionCommotion]

Thanks requinix,  I guess unsetting $this doesn't make much sense, and I can do whatever necessary in the close() callback.

[benanamen]

Isn't this when you would use a destructor in the class?

Edited February 18, 2017 by benanamen

[requinix]

Isn't this when you would use a destructor in the class?

If you mean using it for closing connections and stuff that the class needs, yes. You can't tell PHP to destroy an object - just unset variables/let them drop out of scope and rely on PHP to clean up as it goes.