回答編集履歴
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Update
answer
CHANGED
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@@ -1,16 +1,15 @@
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1
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```php
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<?php
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3
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4
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-
$num =
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4
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+
$num = "01354";
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$arr = str_split($num);
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sort($arr);
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$arr = implode($arr);
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9
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-
$arr = preg_replace(
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9
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+
$arr = preg_replace("/^(0+)(.)/", "$2$1", $arr);
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$arr = intval($arr);
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print($arr);
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-
print_r($arr);
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-
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#
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15
14
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10345
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16
15
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```
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