回答編集履歴
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追記
test
CHANGED
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@@ -8,7 +8,25 @@
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-
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失敬
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> (string[]) An array of email addresses to receive a comment notification.
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と書いてあった。
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だからこんな感じで。
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```
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@@ -20,7 +38,9 @@
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$post_id = $post->ID;
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//$email = get_post_meta( $post_id, 'メタキー', true );
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$email = get_post_meta( $post_id, 'メタキー', true );
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$email[] = get_post_meta( $post_id, 'メタキー', true );
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return $email;
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