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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 |
|---|---|
| 4938 | } |
| 4939 | |
| 4940 | /** |
| 4941 | * Filter the old slug redirect URL. |
| 4942 | * |
| 4943 | * @since 4.4.0 |
| 4944 | * |
| 4945 | * @param string $link The redirect URL. |
| 4946 | */ |
| 4947 | $link = apply_filters( 'old_slug_redirect_url', $link ); |
| 4948 | |
| 4949 | if ( ! $link ) { |
| 4950 | return; |
| 4951 | } |
| 4952 | |
| 4953 | wp_redirect( $link, 301 ); // Permanent redirect |
| 4954 | exit; |
| 4955 | endif; |
| 4956 | } |