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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 |
---|---|
272 | * |
273 | * By default a subset of the_content filters are applied, including wpautop and wptexturize. |
274 | * |
275 | * @since 4.8.0 |
276 | * |
277 | * @param string $text The widget content. |
278 | * @param array $instance Array of settings for the current widget. |
279 | * @param WP_Widget_Text $this Current Text widget instance. |
280 | */ |
281 | $text = apply_filters( 'widget_text_content', $text, $instance, $this ); |
282 | } else { |
283 | // Now in legacy mode, add paragraphs and line breaks when checkbox is checked. |
284 | if ( ! empty( $instance['filter'] ) ) { |
285 | $text = wpautop( $text ); |
286 | } |
287 |
|
288 | /* |
289 | * Manually do shortcodes on the content when the core-added filter is present. It is added by default |
290 | * in core by adding do_shortcode() to the 'widget_text_content' filter to apply after wpautop(). |