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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 |
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213 | * @since Twenty Fifteen 1.0 |
214 | * |
215 | * @see get_url_in_content() |
216 | * |
217 | * @return string The Link format URL. |
218 | */ |
219 | function twentyfifteen_get_link_url() { |
220 | $has_url = get_url_in_content( get_the_content() ); |
221 |
|
222 | return $has_url ? $has_url : apply_filters( 'the_permalink', get_permalink() ); |
223 | } |
224 | endif; |
225 |
|
226 | if ( ! function_exists( 'twentyfifteen_excerpt_more' ) && ! is_admin() ) : |
227 | /** |
228 | * Replaces "[...]" (appended to automatically generated excerpts) with ... and a 'Continue reading' link. |
229 | * |
230 | * @since Twenty Fifteen 1.0 |
231 | * |