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<?php function test($list){ foreach($list as $index1 => $a1){ foreach($list as $index2 => $a2){ if($index2 == 3) unset($list[3]); echo $index1 . " " . $index2 . " - "; } echo "\n"; } echo "\n\n"; } test(new ArrayObject([0,1,2,3,4,5])); test([0,1,2,3,4,5]);
Output for rfc.property-hooks, git.master, git.master_jit
0 0 - 0 1 - 0 2 - 0 3 - 0 5 - 1 0 - 1 1 - 1 2 - 1 4 - 1 5 - 2 0 - 2 1 - 2 2 - 2 4 - 2 5 - 4 0 - 4 1 - 4 2 - 4 4 - 4 5 - 5 0 - 5 1 - 5 2 - 5 4 - 5 5 - 0 0 - 0 1 - 0 2 - 0 3 - 0 4 - 0 5 - 1 0 - 1 1 - 1 2 - 1 4 - 1 5 - 2 0 - 2 1 - 2 2 - 2 4 - 2 5 - 3 0 - 3 1 - 3 2 - 3 4 - 3 5 - 4 0 - 4 1 - 4 2 - 4 4 - 4 5 - 5 0 - 5 1 - 5 2 - 5 4 - 5 5 -

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