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<?php function test($list){ foreach($list as $index1 => $a1){ foreach($list as $index2 => $a2){ if($index2 == 1) unset($list[1]); echo $index1 . " " . $index2 . " - "; } echo "\n"; } echo "\n\n"; } test(new ArrayObject([0,1])); test([0,1]);
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
0 0 - 0 1 - 0 0 - 0 1 - 1 0 -
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
0 0 - 0 1 - Notice: test(): ArrayIterator::next(): Array was modified outside object and internal position is no longer valid in /in/ZVuKj on line 5 0 0 - 0 0 - 0 1 - 1 0 -
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/ZVuKj on line 14
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 '[', expecting ')' in /in/ZVuKj on line 14
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/ZVuKj on line 14
Process exited with code 255.

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