| @@ 327-344 (lines=18) @@ | ||
| 324 | * | |
| 325 | * @return mixed the data stored in the node. | |
| 326 | */ | |
| 327 |     private function deleteEnd() { | |
| 328 | $prev = $this->head; | |
| 329 | $current = $this->head; | |
| 330 | ||
| 331 |         while($current !== $this->tail) { | |
| 332 | $prev = $current; | |
| 333 | $current = $current->next; | |
| 334 | } | |
| 335 | ||
| 336 | $temp = $current; | |
| 337 | $prev->next = &$this->head; | |
| 338 | $this->tail = &$prev; | |
| 339 | $current = null; | |
| 340 | ||
| 341 | $this->size--; | |
| 342 | ||
| 343 | return $temp->data; | |
| 344 | } | |
| 345 | ||
| 346 | /** | |
| 347 | * Deletes the first node of the list and returns it. | |
| @@ 354-372 (lines=19) @@ | ||
| 351 | * | |
| 352 | * @return mixed the data stored in the node. | |
| 353 | */ | |
| 354 |     private function deleteEnd() { | |
| 355 | $prev = $this->head; | |
| 356 | $current = $this->head; | |
| 357 | ||
| 358 |         while($current !== $this->tail) { | |
| 359 | $prev = $current; | |
| 360 | $current = $current->next; | |
| 361 | } | |
| 362 | ||
| 363 | $temp = $current; | |
| 364 | $prev->next = &$this->head; | |
| 365 | $this->head->prev = &$prev; | |
| 366 | $this->tail = &$prev; | |
| 367 | $current = null; | |
| 368 | ||
| 369 | $this->size--; | |
| 370 | ||
| 371 | return $temp->data; | |
| 372 | } | |
| 373 | ||
| 374 | /** | |
| 375 | * Deletes the first node of the list and returns it. | |