src/Parse/ParseInput.php
public function pop()
    {
        if (isset($this->input[$this->pos])) {
            return $this->input[$this->pos ++];
        }
        return null;
    }
public function pop()
    {
        if (isset($this->input[$this->pos])) {
            return $this->input[$this->pos ++];
        }
        return null;
    }
public function pop ( ) { if ( isset ( $ this -> input [ $ this -> pos ] ) ) { return $ this -> input [ $ this -> pos ++ ] ; } return null ; }
Return the current element and advance the sequence position.

@return mxied|null The element or null if end of sequence.
Return the current element and advance the sequence position .