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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 |
---|---|
918 | * |
919 | * @since 4.4.0 |
920 | * @since 4.5.0 Added `$route` and `$handler` parameters. |
921 | * |
922 | * @param bool $dispatch_result Dispatch result, will be used if not empty. |
923 | * @param WP_REST_Request $request Request used to generate the response. |
924 | * @param string $route Route matched for the request. |
925 | * @param array $handler Route handler used for the request. |
926 | */ |
927 | $dispatch_result = apply_filters( 'rest_dispatch_request', null, $request, $route, $handler ); |
928 |
|
929 | // Allow plugins to halt the request via this filter. |
930 | if ( null !== $dispatch_result ) { |
931 | $response = $dispatch_result; |
932 | } else { |
933 | $response = call_user_func( $callback, $request ); |
934 | } |
935 | } |
936 |
|