Remove a token.

@link http://php.net/manual/en/arrayaccess.offsetunset.php

@param int|string $offset The token to unset.
18813
public function offsetUnset( $offset )
	{
		if ( is_int( $offset ) ) {
			unset( $this->tokens[ $offset ] );
		}
		else {
			$this->remove( $offset );
		}
	}
912741
public function offsetUnset($offset)
    {
        $this->_offsetUnset($offset, $this->delimiter);
        $this->process->writeLog("_offsetUnset", [$offset, $this->delimiter]);
    }
1069861
public function offsetUnset($offset)
    {
        if (isset($this->_modelData[$offset])) {
            unset($this->_modelData[$offset]);
        }else{
            throw  new \Exception('不存在的字段：'.$offset);
        }
    }
1178603
public function offsetUnset($offset)
    {
        if ($this->has($offset)) {
            unset(
                $this->_store[$offset],
                $this->_frozen[$offset]
            );
        }
    }
1061450
public function offsetUnset($offset) {
		if ($offset instanceOf Argument) {
			$offset = $offset->key;
		}

		unset($this->_parsed[$offset]);
	}
132405
public function offsetUnset($offset)
    {
        unset($this->data[$offset]);

        $this->keys = array_keys($this->data);
    }
1352558
public function offsetUnset($offset)
	 {
		 $value = isset ($this->data[$offset]) ? $this->data[$offset] : null;
		 unset ($this->data[$offset]);
		 $this->trigger ('unset', $value, $offset);
	 }
493943
public function offsetUnset ($offset) {
		$this->_string = $this->offsetBefore($offset) . $this->offsetAfter($offset + 1);
		$this->_length--;
	}
326328
public function offsetUnset($offset)
    {
        if ($this->offsetExists($offset)) {
            $removed_items = array_splice($this->items, $offset, 1);
            $this->propagateCollectionChangedEvent(
                new CollectionChangedEvent($removed_items[0], CollectionChangedEvent::ITEM_REMOVED)
            );
        } elseif ($this instanceof MandatoryKeyInterface) {
            throw new RuntimeException('Item to be unset not found at key: ' . $offset);
        }
    }
539542
public function offsetUnset($offset)
    {
        $keys = explode($this->keySeparator, $offset);

        $keyCount = count($keys);

        $array = &$this->values;

        while ($keyCount > 1) {
            $key = array_shift($keys);

            if (isset($array[$key]) && is_array($array[$key])) {
                $array = &$array[$key];
            }

            --$keyCount;
        }

        unset($array[array_shift($keys)]);
    }
827425
public function remove($offset = null)
    {
        if ($offset === null) {
            $this->reset();

            return $this;
        }

        $arr = &$this->getArrayByReference($offset);

        if (is_array($arr) && array_key_exists($offset, $arr)) {
            unset($arr[$offset]);
        }

        return $this;
    }
794664
public function offsetUnset($offset)
    {
        $index = $this->findLine($offset);

        if ($index >= 0) {
            unset($this->lines[$index]);
        }
    }
205134
public function offsetUnset($offset)
    {
        $index = $this->getKeyIndex($offset);

        if ($index >= 0) {
            // change size.
            $this->values->setSize($index - 1);

            unset($this->keys[$offset], $this->values[$index]);
        }
    }
1151198
public function offsetUnset($offset)
    {
        if ($this->offsetExists($offset)) {
            $removed_item = $this->items[$offset];
            unset($this->items[$offset]);
            $this->propagateCollectionChangedEvent(
                new CollectionChangedEvent($removed_item, CollectionChangedEvent::ITEM_REMOVED)
            );
        } elseif ($this instanceof MandatoryKeyInterface) {
            throw new RuntimeException('Item to be unset not found at key: ' . $offset);
        }
    }
223777
public function offsetUnset($offset)
    {
        if ($this->offsetExists($offset)) {
            unset($this->internArray[$offset]);
            $this->_set($this->getAttributeName(), $this->internArray);
        }
        return $this;
    }
1229702
public function offsetUnset($offset)
    {
        if (is_int($offset)) {
            $offset = $this->resolveOffset($offset);
            $keys   = array_keys($this->objects);
            if (isset($keys[$offset])) {
                $offset = $keys[$offset];
            }
        }

        $this->remove($offset);
    }
1114973
public function offsetUnset($offset)
    {
        if (strpos($offset, ':') !== false) {
            list($ns, $attr) = explode(':', $offset, 2);
            return $this->_element->removeAttributeNS(Zend_Feed::lookupNamespace($ns), $attr);
        } else {
            return $this->_element->removeAttribute($offset);
        }
    }