回答編集履歴
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@@ -11,3 +11,35 @@
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[http://monmon.hateblo.jp/entry/20120507/1336375838](http://monmon.hateblo.jp/entry/20120507/1336375838)
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[http://cakebaker.42dh.com/2008/06/10/order-by-field/](http://cakebaker.42dh.com/2008/06/10/order-by-field/)
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---
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```php
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$id = array(1, 6, 4, 5, 10);
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$order = array('FIELD(id, ' . implode(', ', $id) . ')');
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print_r($order);
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```
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実行結果
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32
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33
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```
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34
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Array
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(
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[0] => FIELD(id, 1, 6, 4, 5, 10)
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)
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```
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[http://php.net/manual/ja/function.implode.php](http://php.net/manual/ja/function.implode.php)
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