wp-includes/formatting.php:4120Trims text to a certain number of words.
$textstring$num_wordsintoptional55$morestringoptionalnullstringOne hook fires while wp_trim_words() runs, in this order:
Filters the text content after words have been trimmed.
function wp_trim_words( $text, $num_words = 55, $more = null ) { if ( null === $more ) { $more = __( '…' ); } $original_text = $text; $text = wp_strip_all_tags( $text ); $num_words = (int) $num_words; if ( str_starts_with( wp_get_word_count_type(), 'characters' ) && preg_match( '/^utf\-?8$/i', get_option( 'blog_charset' ) ) ) { $text = trim( preg_replace( "/[\n\r\t ]+/", ' ', $text ), ' ' ); preg_match_all( '/./u', $text, $words_array ); $words_array = array_slice( $words_array[0], 0, $num_words + 1 ); $sep = ''; } else { $words_array = preg_split( "/[\n\r\t ]+/", $text, $num_words + 1, PREG_SPLIT_NO_EMPTY ); $sep = ' '; } if ( count( $words_array ) > $num_words ) { array_pop( $words_array ); $text = implode( $sep, $words_array ); $text = $text . $more; } else { $text = implode( $sep, $words_array ); } /** * Filters the text content after words have been trimmed. * * @since 3.3.0 * * @param string $text The trimmed text. * @param int $num_words The number of words to trim the text to. Default 55. * @param string $more An optional string to append to the end of the trimmed text, e.g. …. * @param string $original_text The text before it was trimmed. */ return apply_filters( 'wp_trim_words', $text, $num_words, $more, $original_text );}Introduced in 3.3.0. Unchanged from 6.7.7 through 7.1.0.
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