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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 |
---|---|
2971 | } |
2972 |
|
2973 | /** |
2974 | * Fires before a post is sent to the trash. |
2975 | * |
2976 | * @since 3.3.0 |
2977 | * |
2978 | * @param int $post_id Post ID. |
2979 | */ |
2980 | do_action( 'wp_trash_post', $post_id ); |
2981 |
|
2982 | add_post_meta( $post_id, '_wp_trash_meta_status', $post->post_status ); |
2983 | add_post_meta( $post_id, '_wp_trash_meta_time', time() ); |
2984 |
|
2985 | wp_update_post( |
2986 | array( |
2987 | 'ID' => $post_id, |
2988 | 'post_status' => 'trash', |
2989 | ) |