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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 = $prev; $prev->next(); echo $it->valid() ? $it->current : "not valid";
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
12 Warning: Undefined property: ArrayIterator::$current in /in/lELrO on line 18
Output for 5.2.6 - 5.2.17, 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 - 7.3.31, 7.4.0 - 7.4.33
12 Notice: Undefined property: ArrayIterator::$current in /in/lELrO on line 18
Output for 7.3.32 - 7.3.33
12
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.5
12 Notice: Undefined property: ArrayIterator::$current in /in/lELrO on line 18
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_VARIABLE in /in/lELrO on line 10
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
Parse error: parse error, unexpected T_VARIABLE in /in/lELrO on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/lELrO on line 10
Process exited with code 255.
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