回答編集履歴
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情報の追加。
test
CHANGED
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@@ -17,3 +17,69 @@
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【WordPressでカスタムタクソノミーの投稿を絞込み | Blog | 06.GRASSHOPPER】
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[https://ghweb.info/post-3685.html](https://ghweb.info/post-3685.html)
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---
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**追記：**
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こういうことかなぁ。
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```PHP
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// 親を持つ場合
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if ($category->parent != 0) {
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$args = array(
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'post_type' => 'post',
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'post_status' => 'publish',
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'posts_per_page' => -1,
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'meta_key' => 'category',
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'meta_value' => $category->parent
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);
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// 親をもたない場合
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} else {
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$args = array(
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'post_type' => 'post',
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'post_status' => 'publish',
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'posts_per_page' => -1,
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'meta_key' => 'category',
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'meta_value' => $category->term_id
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);
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}
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$query = new WP_Query($args);
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```
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【WP_Query | Class | WordPress Developer Resources】
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[https://developer.wordpress.org/reference/classes/wp_query/](https://developer.wordpress.org/reference/classes/wp_query/)
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