3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ll = new SplDoublyLinkedList(); $ll->push('ze'); $ll->push('ome'); $ll->push('yei'); $ll->push('nahui'); $ll->rewind(); // HHVM works fine $iterations_done = iterator_apply($ll, function(Iterator $it) { echo implode("\t=>", array( $it->key(), $it->current(), ucfirst($it->current()) )),"\n"; return true; }, array($ll)); echo "Did iterate {$iterations_done} times \n"; $ll->rewind(); $iterations_done = iterator_apply($ll, function(Iterator $it) { echo implode("\t=>", array( $it->key(), $it->current(), ucfirst($it->current()) )),"\n"; $it->next(); return true; }, array($ll)); echo "Did iterate {$iterations_done} times \n"; $ll->setIteratorMode(SplDoublyLinkedList::IT_MODE_FIFO | SplDoublyLinkedList::IT_MODE_DELETE); var_dump($ll->count()); foreach($ll as $key => $val) { echo "{$key}\t",ucfirst($val),"\n"; } var_dump($ll->count());
based on SP39Q
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.28, 7.4.0 - 7.4.16, 8.0.0 - 8.0.3
0 =>ze =>Ze 0 =>ze =>Ze 0 =>ze =>Ze 0 =>ze =>Ze Did iterate 4 times 0 =>ze =>Ze 1 =>ome =>Ome 2 =>yei =>Yei 3 =>nahui =>Nahui Did iterate 4 times int(4) 0 Ze 0 Ome 0 Yei 0 Nahui int(0)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/ARLUZ on line 13
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/ARLUZ on line 13
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/ARLUZ on line 13
Process exited with code 255.