public function getTag($tag)
    {
        return isset($this->tags[$tag]) ? $this->tags[$tag] : null;
    }
public function getTag($tag)
    {
        return isset($this->tags[$tag]) ? $this->tags[$tag] : null;
    }
public function getTag ( $ tag ) { return isset ( $ this -> tags [ $ tag ] ) ? $ this -> tags [ $ tag ] : null ; }
Get the value of a tag, or null if it doesn't exist.

@param  string $tag The name of the tag
@return mixed  The value of the tag or null
Get the value of a tag or null if it doesn t exist .