Array() question?

[hywl51]

sorry, I may ask a very stupid question. I saw a few codes :

class A()
{
...
// Remove embedded tags in posts display
if ( $this->options['use_embed_tags'] == '1' ) {
add_filter('the_content', array(&$this, 'filterEmbedTags'), 95);
}
...
}

What make me confused is the second parm of method add_filter(). From other docs, I know this parm is a callback function name, so with my understanding, this parm should be a string data, but it is an array() in fact, and scripts run OK. Why?Can anyone do me a favor to explain the meaning of the statement "array(&$this, 'filterEmbedTags')?

Thank in advance

hywl51

[NogDog]

A callback function that is a stand-alone function can be referenced just by its name, but a callback of a method is referenced by an array, where the first element is the object that contains the method and the second is the method itself.

[hywl51]

many thanks nogdog.