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run code in 300+ PHP versions simultaneously
<?php $a = new ArrayIterator(range('a', 'z')); echo $a->next(), PHP_EOL, $a->current(), PHP_EOL; $a->offsetUnset($a->key()); echo $a->current(), PHP_EOL, $a->key();;
preferences:
21.94 ms | 404 KiB | 5 Q