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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 |
|---|---|
| 77 | |
| 78 | /** |
| 79 | * Filter the post redirect destination URL. |
| 80 | * |
| 81 | * @since 2.9.0 |
| 82 | * |
| 83 | * @param string $location The destination URL. |
| 84 | * @param int $post_id The post ID. |
| 85 | */ |
| 86 | wp_redirect( apply_filters( 'redirect_post_location', $location, $post_id ) ); |
| 87 | exit; |
| 88 | } |
| 89 | |
| 90 | if ( isset( $_POST['deletepost'] ) ) |
| 91 | $action = 'delete'; |
| 92 | elseif ( isset($_POST['wp-preview']) && 'dopreview' == $_POST['wp-preview'] ) |
| 93 | $action = 'preview'; |
| 94 | |
| 95 | $sendback = wp_get_referer(); |