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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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 974 | * will be used to serve the request instead. |
| 975 | * |
| 976 | * @since 4.4.0 |
| 977 | * |
| 978 | * @param mixed $result Response to replace the requested version with. Can be anything |
| 979 | * a normal endpoint can return, or null to not hijack the request. |
| 980 | * @param WP_REST_Server $server Server instance. |
| 981 | * @param WP_REST_Request $request Request used to generate the response. |
| 982 | */ |
| 983 | $result = apply_filters( 'rest_pre_dispatch', null, $this, $request ); |
| 984 | |
| 985 | if ( ! empty( $result ) ) { |
| 986 | return $result; |
| 987 | } |
| 988 | |
| 989 | $error = null; |
| 990 | $matched = $this->match_request_to_handler( $request ); |
| 991 | |
| 992 | if ( is_wp_error( $matched ) ) { |
| Line | Code |
| 1679 | } |
| 1680 | |
| 1681 | foreach ( $requests as $i => $single_request ) { |
| 1682 | $clean_request = clone $single_request; |
| 1683 | $clean_request->set_url_params( array() ); |
| 1684 | $clean_request->set_attributes( array() ); |
| 1685 | $clean_request->set_default_params( array() ); |
| 1686 | |
| 1687 | /** This filter is documented in wp-includes/rest-api/class-wp-rest-server.php */ |
| 1688 | $result = apply_filters( 'rest_pre_dispatch', null, $this, $clean_request ); |
| 1689 | |
| 1690 | if ( empty( $result ) ) { |
| 1691 | $match = $matches[ $i ]; |
| 1692 | $error = null; |
| 1693 | |
| 1694 | if ( is_wp_error( $validation[ $i ] ) ) { |
| 1695 | $error = $validation[ $i ]; |
| 1696 | } |
| 1697 | |