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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 |
---|---|
2634 | } |
2635 | /** |
2636 | * Filter the trimmed excerpt string. |
2637 | * |
2638 | * @since 2.8.0 |
2639 | * |
2640 | * @param string $text The trimmed text. |
2641 | * @param string $raw_excerpt The text prior to trimming. |
2642 | */ |
2643 | return apply_filters( 'wp_trim_excerpt', $text, $raw_excerpt ); |
2644 | } |
2645 |
|
2646 | /** |
2647 | * Trims text to a certain number of words. |
2648 | * |
2649 | * This function is localized. For languages that count 'words' by the individual |
2650 | * character (such as East Asian languages), the $num_words argument will apply |
2651 | * to the number of individual characters. |
2652 | * |