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run code in 200+ PHP versions simultaneously
<?php $iterator = new \AppendIterator(); $inner1 = new AppendIterator(); $inner1->append(new ArrayIterator([1, 2, 3])); $iterator->append($inner1); $iterator->append(new ArrayIterator([11, 12, 13])); echo "-> iteration", "\n"; while($iterator->valid()) { echo $iterator->current(), "\n"; $iterator->next(); } echo "-> foreach", "\n"; foreach($iterator as $val) { echo $val, "\n"; }
based on WpO5Y
Output for 5.6.0 - 7.0.21, 7.0.24 - 7.1.7, 7.1.10 - 7.4.1
-> iteration 1 2 3 11 12 13 -> foreach 1 2 3 11 12 13
Output for 7.1.9
-> iteration 11 12 13 -> foreach Recoverable fatal error: Object of class ArrayIterator could not be converted to string in /in/EN75q on line 19
Process exited with code 255.
Output for 7.0.22 - 7.0.23, 7.1.8
-> iteration 1 2 3 -> foreach 1 2 3 11 12 13