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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 |
|---|---|
| 2811 | } |
| 2812 | |
| 2813 | /** |
| 2814 | * Fires before a post is sent to the trash. |
| 2815 | * |
| 2816 | * @since 3.3.0 |
| 2817 | * |
| 2818 | * @param int $post_id Post ID. |
| 2819 | */ |
| 2820 | do_action( 'wp_trash_post', $post_id ); |
| 2821 | |
| 2822 | add_post_meta( $post_id, '_wp_trash_meta_status', $post->post_status ); |
| 2823 | add_post_meta( $post_id, '_wp_trash_meta_time', time() ); |
| 2824 | |
| 2825 | wp_update_post( array( 'ID' => $post_id, 'post_status' => 'trash' ) ); |
| 2826 | |
| 2827 | wp_trash_post_comments( $post_id ); |
| 2828 | |
| 2829 | /** |