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<?php $array = new ArrayObject(array(1, 2)); $it = new ArrayIterator($array); while ($it->valid()) { echo $it->current(); $prev = clone $it; $it->next(); } $array[] = 3; $it = $previous; $previous->next(); echo $it->valid() ? $it->current : "not valid";
Output for git.master, git.master_jit, rfc.property-hooks
12 Warning: Undefined variable $previous in /in/b9T3N on line 16 Warning: Undefined variable $previous in /in/b9T3N on line 17 Fatal error: Uncaught Error: Call to a member function next() on null in /in/b9T3N:17 Stack trace: #0 {main} thrown in /in/b9T3N on line 17
Process exited with code 255.

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