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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 |
---|---|
229 | } |
230 |
|
231 | /** |
232 | * Display the post excerpt. |
233 | * |
234 | * @since 0.71 |
235 | * @uses apply_filters() Calls 'the_excerpt' hook on post excerpt. |
236 | */ |
237 | function the_excerpt() { |
238 | echo apply_filters('the_excerpt', get_the_excerpt()); |
239 | } |
240 |
|
241 | /** |
242 | * Retrieve the post excerpt. |
243 | * |
244 | * @since 0.71 |
245 | * |
246 | * @param mixed $deprecated Not used. |
247 | * @return string |