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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 |
---|---|
2570 | } |
2571 | /** |
2572 | * Filter the trimmed excerpt string. |
2573 | * |
2574 | * @since 2.8.0 |
2575 | * |
2576 | * @param string $text The trimmed text. |
2577 | * @param string $raw_excerpt The text prior to trimming. |
2578 | */ |
2579 | return apply_filters( 'wp_trim_excerpt', $text, $raw_excerpt ); |
2580 | } |
2581 |
|
2582 | /** |
2583 | * Trims text to a certain number of words. |
2584 | * |
2585 | * This function is localized. For languages that count 'words' by the individual |
2586 | * character (such as East Asian languages), the $num_words argument will apply |
2587 | * to the number of individual characters. |
2588 | * |