回答編集履歴
1
1 ↔ 2
answer
CHANGED
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@@ -5,9 +5,11 @@
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5
5
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6
6
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$array = ['A' => 'あ', 'B' => 'い', 'C' => ['D' => 'う', 'E' => 'え', 'F' => 'お']];
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7
7
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8
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+
$iter = new RecursiveIteratorIterator(new RecursiveArrayIterator($array));
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9
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+
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8
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-
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10
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+
foreach ($iter as $key => $value) {
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9
11
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echo "$key: $value<br>\n";
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10
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-
}
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12
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+
}
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11
13
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```
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12
14
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13
15
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別解2
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@@ -17,9 +19,7 @@
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17
19
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18
20
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$array = ['A' => 'あ', 'B' => 'い', 'C' => ['D' => 'う', 'E' => 'え', 'F' => 'お']];
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19
21
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20
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-
$iter = new RecursiveIteratorIterator(new RecursiveArrayIterator($array));
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21
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-
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22
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-
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22
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+
array_walk_recursive($array, function ($value, $key) {
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23
23
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echo "$key: $value<br>\n";
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24
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-
}
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24
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+
});
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25
25
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```
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