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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 |
|---|---|
| 335 | * and styles which may get enqueued in the response. |
| 336 | * |
| 337 | * @since 4.5.0 |
| 338 | * |
| 339 | * @param WP_Customize_Selective_Refresh $refresh Selective refresh component. |
| 340 | * @param array $partials Placements' context data for the partials rendered in the request. |
| 341 | * The array is keyed by partial ID, with each item being an array of |
| 342 | * the placements' context data. |
| 343 | */ |
| 344 | do_action( 'customize_render_partials_before', $this, $partials ); |
| 345 | |
| 346 | set_error_handler( array( $this, 'handle_error' ), error_reporting() ); |
| 347 | |
| 348 | $contents = array(); |
| 349 | |
| 350 | foreach ( $partials as $partial_id => $container_contexts ) { |
| 351 | $this->current_partial_id = $partial_id; |
| 352 | |
| 353 | if ( ! is_array( $container_contexts ) ) { |