How do I get items of an array inside an array..?

So I have an array setup sorta like this:

PHP:

foreach($this->plugin->getServer()->getOnlinePlayers() as $p){
 $this->plugin->array["players"] = $p->getName();
}


How would I, for example, get a player named Joe from $array["players"], I want to check if his name is in the "players" part. And how would I unset only 'Joe'? I hope I explained well enough.

Sorry, I don't fully understand what you're saying.

PHP:

if(in_array('Joe', $array['players'])){ // Check if Joe is exist
    $search = array_search('Joe', $array['players']); // Get the key of Joe
    unset($array['players'][$search]); // Unset the value of that key
}


I think it's something like this. Sorry if i had some mistakes

I will try this, thanks for the effort xD