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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 3036 | if ( ! $q['suppress_filters'] ) { |
| 3037 | /** |
| 3038 | * Filters the raw post results array, prior to status checks. |
| 3039 | * |
| 3040 | * @since 2.3.0 |
| 3041 | * |
| 3042 | * @param WP_Post[] $posts Array of post objects. |
| 3043 | * @param WP_Query $this The WP_Query instance (passed by reference). |
| 3044 | */ |
| 3045 | $this->posts = apply_filters_ref_array( 'posts_results', array( $this->posts, &$this ) ); |
| 3046 | } |
| 3047 | |
| 3048 | if ( ! empty( $this->posts ) && $this->is_comment_feed && $this->is_singular ) { |
| 3049 | /** This filter is documented in wp-includes/query.php */ |
| 3050 | $cjoin = apply_filters_ref_array( 'comment_feed_join', array( '', &$this ) ); |
| 3051 | |
| 3052 | /** This filter is documented in wp-includes/query.php */ |
| 3053 | $cwhere = apply_filters_ref_array( 'comment_feed_where', array( "WHERE comment_post_ID = '{$this->posts[0]->ID}' AND comment_approved = '1'", &$this ) ); |
| 3054 | |