ID );
$tags = get_the_tags( $post->ID );
$cat_post_id = array();
$tag_post_id = array();
// 関数使うより直接 SELECT 文発行した方が速い
// 同じカテゴリに属する post_id 取得
if( !empty( $categories ) ) {
foreach( (array)$categories as $val ) {
//$cat_post_id = wp_parse_args( $cat_post_id, $wpdb->get_col( "SELECT object_id FROM $wpdb->term_relationships WHERE term_taxonomy_id = $val->cat_ID AND object_id != $post->ID" ) );
$cat_post_id = wp_parse_args( $cat_post_id, $wpdb->get_col( "SELECT object_id FROM $wpdb->term_relationships, $wpdb->term_taxonomy WHERE $wpdb->term_taxonomy.term_id = $val->cat_ID AND $wpdb->term_taxonomy.term_taxonomy_id = $wpdb->term_relationships.term_taxonomy_id AND object_id != $post->ID" ) );
}
shuffle( $cat_post_id );
}
// 同じタグに属する post_id 取得
if( !empty( $tags ) ) {
foreach( (array)$tags as $val ) {
//$tag_post_id = wp_parse_args( $tag_post_id, $wpdb->get_col( "SELECT object_id FROM $wpdb->term_relationships WHERE term_taxonomy_id = $val->term_taxonomy_id AND object_id != $post->ID" ) );
$tag_post_id = wp_parse_args( $tag_post_id, $wpdb->get_col( "SELECT object_id FROM $wpdb->term_relationships, $wpdb->term_taxonomy WHERE $wpdb->term_taxonomy.term_taxonomy_id = $val->term_taxonomy_id AND $wpdb->term_taxonomy.term_taxonomy_id = $wpdb->term_relationships.term_taxonomy_id AND object_id != $post->ID" ) );
}
shuffle( $tag_post_id );
}
// 同じタグに属する記事を優先表示させるため wp_parse_args 使わない( wp_parse_args だと同じ値があった時に、配列の後ろが残る形になるため )
//$post_in = wp_parse_args( $tag_post_id, $cat_post_id );
// key は使わず単なる連番なので、array_merge で結合するより + 演算子で結合しちゃった方が速い
//$post_in = array_unique( $tag_post_id + $cat_post_id );
// と思ったけど、array_merge じゃないと要素が消えるパターンがあるから、やっぱり array_merge にしたｗ
$post_in = array_unique( array_merge( $tag_post_id, $cat_post_id ) );
//$sticky_posts = get_option( 'sticky_posts' );
$args = array(
'posts_per_page'=> 5,
'post__in' => $post_in,
'orderby' => 'post__in',
);
$st_query = new WP_Query($args);
if( $st_query->have_posts() === true ) {
while( $st_query->have_posts() === true ) {
$wp_upload_dir = wp_upload_dir();
$st_query->the_post();
?>
