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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 |
|---|---|
| 24 | */ |
| 25 | public function register_routes() { |
| 26 | /** |
| 27 | * Filters the maxwidth oEmbed parameter. |
| 28 | * |
| 29 | * @since 4.4.0 |
| 30 | * |
| 31 | * @param int $maxwidth Maximum allowed width. Default 600. |
| 32 | */ |
| 33 | $maxwidth = apply_filters( 'oembed_default_width', 600 ); |
| 34 | |
| 35 | register_rest_route( |
| 36 | 'oembed/1.0', |
| 37 | '/embed', |
| 38 | array( |
| 39 | array( |
| 40 | 'methods' => WP_REST_Server::READABLE, |
| 41 | 'callback' => array( $this, 'get_item' ), |
| 42 | 'permission_callback' => '__return_true', |