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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 |
|---|---|
| 1924 | $text = wp_strip_all_tags( $text ); |
| 1925 | $words_array = preg_split( "/[\n\r\t ]+/", $text, $num_words + 1, PREG_SPLIT_NO_EMPTY ); |
| 1926 | if ( count( $words_array ) > $num_words ) { |
| 1927 | array_pop( $words_array ); |
| 1928 | $text = implode( ' ', $words_array ); |
| 1929 | $text = $text . $more; |
| 1930 | } else { |
| 1931 | $text = implode( ' ', $words_array ); |
| 1932 | } |
| 1933 | return apply_filters( 'wp_trim_words', $text, $num_words, $more, $original_text ); |
| 1934 | } |
| 1935 | |
| 1936 | /** |
| 1937 | * Converts named entities into numbered entities. |
| 1938 | * |
| 1939 | * @since 1.5.1 |
| 1940 | * |
| 1941 | * @param string $text The text within which entities will be converted. |
| 1942 | * @return string Text with converted entities. |