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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 |
|