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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 309 | * |
| 310 | * Returning false will effectively short-circuit display of the widget. |
| 311 | * |
| 312 | * @since 2.8.0 |
| 313 | * |
| 314 | * @param array $instance The current widget instance's settings. |
| 315 | * @param WP_Widget $this The current widget instance. |
| 316 | * @param array $args An array of default widget arguments. |
| 317 | */ |
| 318 | $instance = apply_filters( 'widget_display_callback', $instance, $this, $args ); |
| 319 | |
| 320 | if ( false === $instance ) { |
| 321 | return; |
| 322 | } |
| 323 | |
| 324 | $was_cache_addition_suspended = wp_suspend_cache_addition(); |
| 325 | if ( $this->is_preview() && ! $was_cache_addition_suspended ) { |
| 326 | wp_suspend_cache_addition( true ); |
| 327 | } |