wp_trim_words

函数
wp_trim_words ( $text, $num_words = 55, $more = null )
参数
  • (string) $text Text to trim.
    Required:
  • (int) $num_words Number of words. Default 55.
    Required:
    Default: 55
  • (string) $more Optional. What to append if $text needs to be trimmed. Default '…'.
    Required:
    Default: null
返回值
  • (string) Trimmed text.
定义位置
相关方法
wp_title_rsswp_set_passwordwp_trim_excerptwp_write_postwp_get_network
引入
3.3.0
弃用
-

wp_trim_words: 这个函数用于将一串文本缩短到指定的字数: 该函数接受两个参数:要缩短的文本字符串和要包含在缩短的文本中的字数。

将文本修剪到一定的字数。

这个函数是本地化的。对于按单个字符计算’字数’的语言(如东亚语言),$num_words参数将适用于单个字符的数量。

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;

	/*
	 * translators: If your word count is based on single characters (e.g. East Asian characters),
	 * enter 'characters_excluding_spaces' or 'characters_including_spaces'. Otherwise, enter 'words'.
	 * Do not translate into your own language.
	 */
	if ( strpos( _x( 'words', 'Word count type. Do not translate!' ), 'characters' ) === 0 && preg_match( '/^utf-?8$/i', get_option( 'blog_charset' ) ) ) {
		$text = trim( preg_replace( "/[nrt ]+/", ' ', $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( "/[nrt ]+/", $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 );
}

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