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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 |
|---|---|
| 2952 | /** |
| 2953 | * Filters whether a post deletion should take place. |
| 2954 | * |
| 2955 | * @since 4.4.0 |
| 2956 | * |
| 2957 | * @param bool|null $delete Whether to go forward with deletion. |
| 2958 | * @param WP_Post $post Post object. |
| 2959 | * @param bool $force_delete Whether to bypass the trash. |
| 2960 | */ |
| 2961 | $check = apply_filters( 'pre_delete_post', null, $post, $force_delete ); |
| 2962 | if ( null !== $check ) { |
| 2963 | return $check; |
| 2964 | } |
| 2965 | |
| 2966 | /** |
| 2967 | * Fires before a post is deleted, at the start of wp_delete_post(). |
| 2968 | * |
| 2969 | * @since 3.2.0 |
| 2970 | * |