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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 |
|---|---|
| 73 | * Filters the content of the Text widget. |
| 74 | * |
| 75 | * @since 2.3.0 |
| 76 | * @since 4.4.0 Added the `$this` parameter. |
| 77 | * |
| 78 | * @param string $text The widget content. |
| 79 | * @param array $instance Array of settings for the current widget. |
| 80 | * @param WP_Widget_Text $this Current Text widget instance. |
| 81 | */ |
| 82 | $text = apply_filters( 'widget_text', $text, $instance, $this ); |
| 83 | |
| 84 | if ( isset( $instance['filter'] ) ) { |
| 85 | if ( 'content' === $instance['filter'] ) { |
| 86 | |
| 87 | /** |
| 88 | * Filters the content of the Text widget to apply changes expected from the visual (TinyMCE) editor. |
| 89 | * |
| 90 | * By default a subset of the_content filters are applied, including wpautop and wptexturize. |
| 91 | * |