source/Core/Model/ListModel.php
public function offsetUnset($offset)
    {
        if (strcmp($offset, $this->key()) === 0) {
            // #0002184: active element removed, next element will be prev / first
            $this->_blRemovedActive = true;
        }

        unset($this->_aArray[$offset]);
    }
public function offsetUnset($offset)
    {
        if (strcmp($offset, $this->key()) === 0) {
            // #0002184: active element removed, next element will be prev / first
            $this->_blRemovedActive = true;
        }

        unset($this->_aArray[$offset]);
    }
public function offsetUnset ( $ offset ) { if ( strcmp ( $ offset , $ this -> key ( ) ) === 0 ) { // #0002184: active element removed, next element will be prev / first $ this -> _blRemovedActive = true ; } unset ( $ this -> _aArray [ $ offset ] ) ; }
offsetUnset for SPL

@param mixed $offset SPL array offset
offsetUnset for SPL