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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 |
|---|---|
| 2364 | $text = str_replace(']]>', ']]>', $text); |
| 2365 | |
| 2366 | /** |
| 2367 | * Filter the number of words in an excerpt. |
| 2368 | * |
| 2369 | * @since 2.7.0 |
| 2370 | * |
| 2371 | * @param int $number The number of words. Default 55. |
| 2372 | */ |
| 2373 | $excerpt_length = apply_filters( 'excerpt_length', 55 ); |
| 2374 | /** |
| 2375 | * Filter the string in the "more" link displayed after a trimmed excerpt. |
| 2376 | * |
| 2377 | * @since 2.9.0 |
| 2378 | * |
| 2379 | * @param string $more_string The string shown within the more link. |
| 2380 | */ |
| 2381 | $excerpt_more = apply_filters( 'excerpt_more', ' ' . '[…]' ); |
| 2382 | $text = wp_trim_words( $text, $excerpt_length, $excerpt_more ); |