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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 |
|---|---|
| 238 | } |
| 239 | |
| 240 | /** |
| 241 | * Display the post excerpt. |
| 242 | * |
| 243 | * @since 0.71 |
| 244 | * @uses apply_filters() Calls 'the_excerpt' hook on post excerpt. |
| 245 | */ |
| 246 | function the_excerpt() { |
| 247 | echo apply_filters('the_excerpt', get_the_excerpt()); |
| 248 | } |
| 249 | |
| 250 | /** |
| 251 | * Retrieve the post excerpt. |
| 252 | * |
| 253 | * @since 0.71 |
| 254 | * |
| 255 | * @param mixed $deprecated Not used. |
| 256 | * @return string |