テンプレートエラー
<pre>
object(WP_Post)#1215 (24) {
  ["ID"]=>
  int(689)
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  ["post_date_gmt"]=>
  string(19) "2018-04-09 09:00:24"
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  string(0) ""
  ["post_title"]=>
  string(27) "20180310-0311_秀観塾 (5)"
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  string(43) "20180310-0311_%e7%a7%80%e8%a6%b3%e5%a1%be-5"
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  string(19) "2018-04-09 18:02:34"
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  ["menu_order"]=>
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  ["post_type"]=>
  string(10) "attachment"
  ["post_mime_type"]=>
  string(10) "image/jpeg"
  ["comment_count"]=>
  string(1) "0"
  ["filter"]=>
  string(3) "raw"
}
</pre>